Best Water Cooling Parts Under $100: 15 Spec-Based Picks
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You need reliable best water cooling parts under $100 to build a loop that fits your case. We compared 15 options using only the specifications published on the listings. The Alphacool NexXxos 240mm Full Copper Radiator leads because its 1.81-inch height fits tight spaces while delivering copper performance. Each pick is ranked by how well its specs match specific build needs. This guide helps you decide which radiators, blocks, and coolant match your hardware and case dimensions.
Quick picks
The best fit for you
- You want the best overall 240mm copper radiator Alphacool NexXxos 240mm Full Copper Radiator Its 1.81-inch height and 1.32-pound weight provide robust cooling in a compact dual-fan footprint.
- You need a single fan copper radiator for tight spaces Alphacool NexXxos UT60 140mm Full Copper Radiator This 140mm model offers dense copper thermal mass in a precise single-fan 7.32-inch length.
- You want high performance cooling in a slim 360mm profile Alphacool NexXxos ST30 360mm X-Flow Radiator Its 1.18-inch height delivers dense copper heat exchange for triple-fan setups in tight cases.
- You want clear aesthetics for your Galax RTX 2070 Bykski Galax RTX 2070 Full Coverage GPU Block This full-coverage block features clear material to display your coolant color on specific GPUs.
Our 15 picks
Alphacool NexXxos 240mm Full Copper Radiator
Best for: compact 240mm copper loops
- Radiator Size
- 240mm
- Material
- Copper
- Fan Mount
- Dual Fan
- Dimensions
- 4.88 × 11 × 1.81 inches
- Weight
- 1.32 pounds
View on Amazon: Alphacool NexXxos 240mm Full Copper Radiator
This Alphacool NexXxos XT45 is a 240mm full copper radiator designed for dual 120mm fans. It features copper chambers, fins, and channels for efficient heat transfer, with steel side panels for durability. The unit weighs 1.32 pounds and measures 280 x 124 x 46mm. It includes six G1/4" ports for flexible tubing connections. This model suits builders seeking reliable thermal performance in a compact black finish under $100.
Pros
- Full copper construction with copper chambers, fins, and channels
- Six G1/4" ports for versatile tubing routing
- Dual fan compatibility for 240mm mounts
- Steel side panels for structural rigidity
Cons
- Heavier build at 1.32 pounds compared to aluminum alternatives
- Black exterior may not match all custom loop color schemes
- Limited to 240mm size, restricting max heat dissipation area
Good fit if
- You need a 240mm radiator with full copper internals
- You want six G1/4" ports for flexible tubing connections
- You prefer a compact dual-fan setup under $100
Skip if
- You require a 360mm or larger radiator size
- You need a lighter aluminum core for weight savings
- You prefer a silver or white exterior finish
Verdict: Alphacool NexXxos XT45 240mm Copper Radiator delivers robust cooling in a compact form. It fits builders who prioritize copper performance and port flexibility in a 240mm footprint.
Alphacool NexXxos UT60 140mm Full Copper Radiator
Best for: Compact builds needing single 140mm copper cooling
- Radiator Size
- 140mm
- Material
- Copper
- Fan Mount
- Single Fan
- Dimensions
- 7.32 × 5.67 × 2.36 inches
- Weight
- 1.76 pounds
View on Amazon: Alphacool NexXxos UT60 140mm Full Copper Radiator
This Alphacool NexXxos UT60 is a full copper radiator designed for single 140mm fans. It features a black finish with steel side panels and brass G1/4" ports. The compact dimensions of 186 x 144 x 60mm make it suitable for tight cases. At 1.13kg, it offers a dense copper core for efficient heat dissipation. You get six connection points for flexible tubing routing. This unit is ideal for builds requiring a specific single-fan footprint.
Pros
- Full copper core and fins for high thermal performance
- Six G1/4" ports for versatile tubing connections
- Compact 140mm single fan form factor
- Durable steel side panels with black finish
Cons
- Single fan size limits total cooling surface area
- Heavier than aluminum alternatives due to full copper construction
- No included fan, requiring separate purchase
Good fit if
- You need a single 140mm radiator for a compact case
- You prefer the thermal efficiency of full copper cores
- You want multiple G1/4" ports for custom loop routing
Skip if
- You require dual or triple fan cooling capacity
- You are looking for an aluminum radiator to save weight
- You need a pre-installed fan for immediate use
Verdict: Alphacool NexXxos UT60 140mm Single Fan Radiator is a dense, copper-heavy cooling solution for builders who need a precise single-fan footprint. It suits those prioritizing thermal mass and port flexibility over raw fan count.
Alphacool NexXxoS ST30 280mm Copper Radiator
Best for: compact dual-fan liquid cooling loops
- Radiator Size
- 280mm
- Material
- Copper
- Dimensions
- 12.6 × 5.67 × 1.18 inches
- Weight
- 0.86 kilograms
View on Amazon: Alphacool NexXxoS ST30 280mm Copper Radiator
This Alphacool NexXxoS ST30 is a full copper radiator designed for 280mm fan configurations. It measures 12.6 inches in length and weighs 0.86 kilograms. The black finish and X-Flow core design help manage heat in liquid cooling loops. You will find this unit suitable for builds requiring a compact yet effective heat exchanger. It fits well in cases that support dual-fan setups without excessive depth.
Pros
- Full copper construction for efficient heat dissipation
- 280mm size accommodates dual 120mm or dual 140mm fans
- Compact 1.18-inch height saves case space
- Black finish matches many system builds
Cons
- Limited to 280mm fan configuration
- No included mounting hardware listed
- Heavy at 0.86 kilograms for small cases
Good fit if
- You need a reliable copper radiator for a 280mm setup
- You prioritize full copper construction over aluminum
- You have a case that fits 12.6-inch radiators
Skip if
- You require a 360mm or larger radiator
- You prefer aluminum cores for lighter weight
- You need a radiator with included fans
Verdict: Alphacool NexXxoS ST30 280mm Copper Radiator is a solid choice for builders who need a full copper heat exchanger in a compact form factor. It fits users with dual-fan setups who value material quality over size.
Alphacool NexXxoS XT45 40mm Copper Radiator
Best for: cooling small components in compact cases
- Radiator Size
- 40mm
- Material
- Copper
- Dimensions
- 5.79 × 1.57 × 1.61 inches
- Weight
- 0.34 kilograms
This is a 40mm full copper radiator from Alphacool. It measures 5.79 inches long, 1.61 inches high, and weighs 0.34 kilograms. The black finish fits standard builds. You need this if you have space for a single 40mm fan. It provides cooling for small loops. The compact size suits tight cases or specific component cooling needs where larger radiators do not fit.
Pros
- Full copper construction for efficient heat transfer
- Compact 40mm form factor fits small spaces
- Black finish matches standard aesthetics
- Lightweight at 0.34 kilograms
Cons
- Very small 40mm size limits cooling capacity
- Single fan configuration reduces airflow potential
- No included fans or mounting hardware listed
Good fit if
- You have a case that supports 40mm radiators
- You need to cool a small component like a VRM
- You are building a compact SFF water cooling loop
Skip if
- You require high cooling performance for a CPU
- You only have space for 120mm or larger fans
- You want a pre-assembled unit with fans included
Verdict: Alphacool NexXxoS XT45 40mm Copper Radiator is a specialized heat exchanger for tight spaces. It fits builders who need to cool small components in compact cases where standard radiators are too large.
Alphacool NexXxoS XT45 92mm Copper Radiator
Best for: Compact single-fan builds
- Radiator Size
- 92mm
- Material
- Copper
- Dimensions
- 3.94 × 3.94 × 2.36 inches
- Weight
- 15.9 ounces
This 92mm single-fan radiator is built from full copper. It measures 3.94 by 2.36 inches and weighs 15.9 ounces. The black finish fits standard builds. You should choose this if you need a compact heat exchanger for tight spaces. It offers a reliable copper core for efficient cooling in small form factors.
Pros
- Full copper construction for effective heat dissipation
- Compact 92mm size fits small cases
- Lightweight at 15.9 ounces
- Black finish for clean aesthetics
Cons
- 92mm size is non-standard and limits fan options
- Single fan configuration provides less cooling area
- Small surface area compared to larger radiators
Good fit if
- You have a small form factor case
- You need a single-fan cooling solution
- You prefer compact copper radiators
Skip if
- You require standard 120mm or 140mm fan compatibility
- You need high airflow for heavy loads
- You want a multi-fan setup
Verdict: Alphacool NexXxoS 92mm Copper Radiator is a specialized compact solution. It fits users with tight space constraints who can accommodate its unique 92mm footprint.
Alphacool NexXxoS XT45 60mm Dual Copper Radiator
Best for: compact builds with low heat output
- Radiator Size
- 60mm
- Material
- Copper
- Dimensions
- 4.72 × 2.36 × 2.36 inches
- Weight
- 0.41 kilograms
View on Amazon: Alphacool NexXxoS XT45 60mm Dual Copper Radiator
This is a compact 60mm full copper radiator from Alphacool. It measures 4.72 inches in length and weighs 0.41 kilograms. The black finish suits minimal builds. You need this for small form factor cases with limited space. It provides heat exchange in tight spots where larger radiators do not fit. The copper construction ensures reliable thermal performance.
Pros
- Full copper construction for efficient heat dissipation
- Compact 60mm size fits tight spaces
- Lightweight at 0.41 kilograms
- Black finish for clean aesthetics
Cons
- Single fan size limits total cooling capacity
- Small surface area restricts use in high-heat builds
- No included mounting hardware for all cases
Good fit if
- You have a small form factor case
- You need to cool a low-power component
- You are building a compact HTPC
Skip if
- You require high cooling performance
- You have a large mid-tower case
- You are cooling a high-TDP CPU
Verdict: Alphacool 60mm Copper Radiator fits small builds where space is tight. It works for low-power components in compact cases.
Alphacool NexXxoS XT45 Full Copper 60mm Triple Radiator
Best for: Compact builds with tight depth constraints
- Radiator Size
- 60mm
- Material
- Copper
- Dimensions
- 7.09 × 2.36 × 2.36 inches
- Weight
- 1.14 pounds
View on Amazon: Alphacool NexXxoS XT45 Full Copper 60mm Triple Radiator
This Alphacool NexXxoS XT45 radiator measures 60mm in thickness and 7.09 inches in length. It features a full copper construction for efficient heat dissipation. The unit weighs 1.14 pounds and fits into compact spaces where standard radiators cannot. You should choose this model if you need a small heat exchanger for a dense configuration or a specialized build with limited depth clearance.
Pros
- Full copper construction for reliable thermal performance
- Compact 60mm thickness saves internal case space
- 7.09 inch length allows flexible mounting options
- Lightweight design at 1.14 pounds
Cons
- 60mm thickness provides less surface area than larger radiators
- Small size limits total heat dissipation capacity
- Requires high static pressure fans to overcome dense fin stack
Good fit if
- You are building a small form factor PC with tight depth constraints
- You need to fit a radiator into a space where only 60mm is available
- You want to use multiple small radiators for a distributed cooling setup
Skip if
- You need maximum cooling performance for a high-end CPU
- You have ample space for standard 240mm or 360mm radiators
- You prefer larger radiators for better airflow efficiency
Verdict: Alphacool 60mm Triple Copper Radiator is a specialized component for builders with strict space limitations. It fits best in compact cases where standard radiators do not fit, offering reliable copper heat transfer in a small footprint.
Alphacool NexXxos ST30 360mm X-Flow Radiator
Best for: High performance cooling in tight spaces
- Radiator Size
- 360mm
- Material
- Copper
- Fan Mount
- Triple Fan
- Dimensions
- 16.3 × 4.88 × 1.18 inches
- Weight
- 1.51 pounds
View on Amazon: Alphacool NexXxos ST30 360mm X-Flow Radiator
This is a 360mm full copper radiator designed for triple fan mounting. It features copper chambers, fins, and channels with steel side panels and brass G1/4" threads. The unit weighs 686g and measures 413 x 124 x 30mm. You get four connection ports for flexible tubing routing. It suits builds requiring high heat dissipation in a compact 1.18-inch profile.
Pros
- Full copper construction for chambers, fins, and channels
- Three G1/4" and one additional port for tubing
- Compact 1.18-inch thickness saves case space
- Steel side panels protect internal components
Cons
- Black exterior may not match all builds
- Steel sides add weight compared to pure copper
- Limited to triple fan mounting only
Good fit if
- You need maximum surface area in a small space
- You prefer full copper heat exchange materials
- You have a case supporting 360mm radiators
Skip if
- You require RGB lighting integration
- You have only dual fan mounting options
- You prefer aluminum cores for weight savings
Verdict: Alphacool NexXxos ST30 360mm Radiator delivers dense copper cooling in a slim profile. It fits builders who prioritize thermal performance over aesthetic customization.
Alphacool NexXxos XT45 X-Flow 240mm Copper Radiator
Best for: Standard 240mm dual-fan setups
- Radiator Size
- 240mm
- Material
- Copper
- Fan Mount
- Dual Fan
- Dimensions
- 11.5 × 4.88 × 1.77 inches
- Weight
- 1.03 kilograms
View on Amazon: Alphacool NexXxos XT45 X-Flow 240mm Copper Radiator
This 240mm radiator features a black finish with copper internals. It has steel side panels and brass G1/4 inch threads. The unit weighs 783 grams and measures 293 by 124 by 45 mm. It suits you if you want a standard dual-fan size. The black exterior matches many builds. You get a reliable copper core for heat dissipation.
Pros
- Copper chambers and fins
- Steel side panels
- Six G1/4 inch ports
- Black exterior color
Cons
- Steel side panels are heavier than aluminum
- Standard 45 mm thickness
- No included fans
Good fit if
- You need a 240mm dual-fan radiator
- You prefer a black finish
- You want copper internals
Skip if
- You require a thicker radiator
- You need a single-fan size
- You want a slim profile
Verdict: Alphacool NexXxos XT45 240mm Black offers a sturdy build with copper internals. It fits you if you need a standard dual-fan size with a black finish.
Alphacool NexXxoS ST25 240mm Copper Radiator
Best for: Slim case builds requiring full copper cooling
- Radiator Size
- 240mm
- Material
- Copper
- Dimensions
- 2.36 × 4.72 × 4.72 inches
- Weight
- 1.75 pounds
View on Amazon: Alphacool NexXxoS ST25 240mm Copper Radiator
The Alphacool NexXxoS ST25 is a 240mm full copper radiator designed for high-performance liquid cooling loops. It features a slim 1.57-inch profile, making it suitable for cases with limited depth. The unit uses pure copper for the end chambers, water channels, and cooling fins. This all-copper construction is a key differentiator for thermal efficiency. It weighs 1.75 pounds and comes in a black finish. You get reliable heat dissipation in a compact form factor.
Pros
- Full copper construction for end chambers, channels, and fins
- Slim 1.57-inch depth fits tight cases
- 240mm size supports dual-fan setups
- Black finish for clean builds
Cons
- Slim 1.57-inch profile has lower surface area than thicker radiators
- Heavier at 1.75 pounds due to solid copper build
- No included fans with the radiator unit
Good fit if
- You need a slim radiator for a compact case
- You prioritize full copper construction for thermal performance
- You are building a 240mm loop configuration
Skip if
- You require maximum cooling capacity with a thick radiator
- You want a lightweight aluminum alternative
- You need a pre-assembled unit with fans included
Verdict: Alphacool NexXxoS ST25 240mm Copper Radiator fits builders who need a slim, all-copper solution for tight cases. It delivers strong thermal performance in a compact 1.57-inch frame. This is a solid pick for space-constrained high-performance loops.
Watercool HEATKILLER IV Basic AM4 Acetal CPU Block
Best for: AM4 custom loop builders needing high flow
- Socket Compatibility
- AM4
- Material
- Acetal
- Dimensions
- 2.6 × 2.32 × 0.67 inches
- Weight
- 0.32 kilograms
View on Amazon: Watercool HEATKILLER IV Basic AM4 Acetal CPU Block
This is a Watercool HEATKILLER IV Basic CPU water block designed for AMD AM4 sockets. It features an acetal construction with a black finish. The unit measures 2.6 inches in length, 2.32 inches in width, and 0.67 inches in height. It weighs 0.32 kilograms. The design includes a revised cooling structure with finer micro fins to increase the contact surface area. This block offers higher flow performance through its jet structure. It suits users building a custom loop for AM4 processors who need a reliable, high-flow component.
Pros
- Compatible with AMD AM4 sockets
- Constructed from durable acetal material
- Features finer micro fins for increased contact surface
- Designed for real high flow performance
- Compact dimensions at 2.6 x 2.32 x 0.67 inches
Cons
- Limited to AM4 socket compatibility only
- Acetal material may have lower thermal conductivity than copper
- Basic model lacks premium aesthetic finishes
Good fit if
- You are building a custom loop for an AMD AM4 CPU
- You prioritize high flow performance in your cooling loop
- You need a compact block that fits standard radiator spacing
Skip if
- You use an AMD AM5 or Intel socket
- You require copper construction for maximum heat transfer
- You need compatibility with multiple socket generations
Verdict: Watercool HEATKILLER IV Basic AM4 Acetal Block is a solid choice for AM4 builds focused on flow rate. It fits users who value the revised micro fin structure for better heat exchange in a compact form factor.
Watercool HEATKILLER IV PRO Acetal CPU Water Block
Best for: AMD AM4 and AM5 high-flow builds
- Socket Compatibility
- AM4, AM5
- Material
- Acetal
- Dimensions
- 2.32 × 2.6 × 0.67 inches
- Weight
- 0.32 kilograms
View on Amazon: Watercool HEATKILLER IV PRO Acetal CPU Water Block
This CPU water block uses an acetal body to manage heat on AMD AM4 and AM5 sockets. It features a real high-flow design with a larger jet structure and integrated receptacles. The cooling structure removes the jet plate for improved reliability. You get compatibility with 16/10 and 19/13 fittings. It measures 2.6 inches wide and weighs 0.32 kilograms. This spec-based pick suits builders needing reliable flow and broad socket support.
Pros
- Supports AMD AM4 and AM5 sockets
- High-flow design with larger jet structure
- Integrated jet for improved reliability
- Compatible with 16/10 and 19/13 fittings
Cons
- Acetal body may offer less thermal mass than copper
- No included mounting hardware listed in specs
- Limited to AMD sockets only
Good fit if
- You use an AMD AM4 or AM5 processor
- You prefer high-flow tubing fittings
- You want a reliable integrated jet design
Skip if
- You use an Intel CPU
- You need a copper cold plate
- You require RGB lighting features
Verdict: Watercool HEATKILLER IV PRO Acetal Block is a solid choice for AMD AM4 and AM5 users who prioritize high flow rates and fitting compatibility over copper construction.
Watercool HEATKILLER IV PRO Acrylic AMD Water Block
Best for: AMD AM4/AM5 builds with clear tops
- Socket Compatibility
- AM4, AM5
- Material
- Acrylic
- Dimensions
- 5.51 × 4.33 × 1.97 inches
- Weight
- 10.9 ounces
View on Amazon: Watercool HEATKILLER IV PRO Acrylic AMD Water Block
This is a CPU water block for AMD AM4 and AM5 sockets. It features a copper base and an acrylic top. The design uses a high-flow jet structure for better coolant movement. It supports 16/10 and 19/13 fittings. The unit weighs 10.9 ounces. It suits builders who want reliable flow and clear aesthetics for their AMD systems.
Pros
- Compatible with AMD AM4 and AM5 sockets
- Copper base with acrylic top cover
- Supports 16/10 and 19/13 fittings
- High-flow jet structure for improved performance
Cons
- Acrylic top may be less durable than metal
- No mention of included mounting hardware
- Heavier than standard aluminum blocks
Good fit if
- You are building an AMD AM4 or AM5 system
- You prefer clear acrylic tops for visibility
- You use 16/10 or 19/13 tubing fittings
Skip if
- You use Intel sockets only
- You prefer lightweight aluminum construction
- You require a copper top for durability
Verdict: Watercool HEATKILLER IV PRO Acrylic offers solid flow and socket support for AMD users. It fits those who value high-flow designs and clear tops.
Bykski Galax RTX 2070 Full Coverage GPU Block
Best for: Galax RTX 2070 Gamer owners wanting clear aesthetics
- Coolant Color
- Clear
- Dimensions
- 11.8 × 7.11 × 2.05 inches
- Weight
- 3.7 pounds
View on Amazon: Bykski Galax RTX 2070 Full Coverage GPU Block
This Bykski GPU water block covers the Galax RTX 2070 Gamer. It measures 11.8 inches long, 7.11 inches wide, and 2.05 inches high. The unit weighs 3.7 pounds. You get a clear finish that shows your coolant color. It fits full-coverage designs for this specific graphics card model.
Pros
- Full coverage design for Galax RTX 2070 Gamer
- Clear finish displays coolant color
- Dimensions: 11.8 x 7.11 x 2.05 inches
- Weight: 3.7 pounds
Cons
- Specific to Galax RTX 2070 Gamer only
- Heavy at 3.7 pounds
- No mention of included fittings or mounting hardware
Good fit if
- You own a Galax RTX 2070 Gamer graphics card
- You want a clear block to show off your coolant
- You need full coverage for the GPU and VRMs
Skip if
- You have a different RTX 2070 model
- You prefer opaque or colored blocks
- You need a block for a different GPU brand
Verdict: Bykski Galax RTX 2070 Full Coverage GPU Block is a clear, full-coverage option for Galax RTX 2070 Gamer owners who want to display their coolant color. It fits users who prioritize visual clarity and specific brand compatibility.
Mayhems XT1 Premixed PC Coolant 5 Litre
Best for: Large custom loops needing premixed coolant
- Coolant Color
- Green
- Coolant Volume
- 5 Litre
- Dimensions
- 9.45 × 6.69 × 4.53 inches
This 5-liter bottle of Mayhems XT1 premixed coolant is designed for thermal performance and loop longevity. It comes in Tree Viper Green and includes corrosion inhibitors to protect components from scale buildup. You get a large volume suitable for extensive custom loops or multiple builds. The premixed formula saves you the step of mixing concentrates with distilled water, allowing you to fill your system directly.
Pros
- 5-liter volume for large loops
- Premixed for easy filling
- Corrosion and scale protection
- Tree Viper Green color
Cons
- Single color option per bottle
- No UV glow in this variant
- Large bottle requires storage space
Good fit if
- You need coolant for a large custom loop
- You want a premixed solution to avoid mixing errors
- You prefer a green aesthetic for your loop
Skip if
- You need a small volume for a single block
- You prefer a UV-reactive glowing coolant
- You want to mix your own color concentration
Verdict: Mayhems XT1 Premixed Coolant 5L offers a high-volume, ready-to-use solution for builders prioritizing component protection and thermal efficiency. It is ideal for those constructing extensive loops who want to skip the mixing process.
Specifications side by side
| Spec | Alphacool NexXxos 240mm Full Copper Radiator | Alphacool NexXxos UT60 140mm Full Copper Radiator | Alphacool NexXxoS ST30 280mm Copper Radiator | Alphacool NexXxoS XT45 40mm Copper Radiator | Alphacool NexXxoS XT45 92mm Copper Radiator | Alphacool NexXxoS XT45 60mm Dual Copper Radiator | Alphacool NexXxoS XT45 Full Copper 60mm Triple Radiator | Alphacool NexXxos ST30 360mm X-Flow Radiator | Alphacool NexXxos XT45 X-Flow 240mm Copper Radiator | Alphacool NexXxoS ST25 240mm Copper Radiator | Watercool HEATKILLER IV Basic AM4 Acetal CPU Block | Watercool HEATKILLER IV PRO Acetal CPU Water Block | Watercool HEATKILLER IV PRO Acrylic AMD Water Block | Bykski Galax RTX 2070 Full Coverage GPU Block | Mayhems XT1 Premixed PC Coolant 5 Litre |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Radiator Size | 240mm | 140mm | 280mm | not specified | 92mm | 60mm | 60mm | 360mm | 240mm | 240mm | not specified | not specified | not specified | not specified | not specified |
| Socket Compatibility | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | AM4 | AM4, AM5 | AM4, AM5 | not specified | not specified |
| Material | Copper | Copper | Copper | Copper | Copper | Copper | Copper | Copper | Copper | Copper | Acetal | Acetal | Acrylic | not specified | not specified |
| Coolant Color | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | Clear | Green |
| Coolant Volume | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | not specified | 5 Litre |
| Fan Mount | Dual Fan | Single Fan | not specified | not specified | not specified | not specified | not specified | Triple Fan | Dual Fan | not specified | not specified | not specified | not specified | not specified | not specified |
| Size | 240Mm | 140mm | 280mm | 40mm | 92mm | 60mm | 60mm | 360Mm | 240Mm | 240Mm | not specified | not specified | not specified | not specified | 5 Litre |
| Dimensions | 4.88 × 11 × 1.81 inches | 7.32 × 5.67 × 2.36 inches | 12.6 × 5.67 × 1.18 inches | 5.79 × 1.57 × 1.61 inches | 3.94 × 3.94 × 2.36 inches | 4.72 × 2.36 × 2.36 inches | 7.09 × 2.36 × 2.36 inches | 16.3 × 4.88 × 1.18 inches | 11.5 × 4.88 × 1.77 inches | 2.36 × 4.72 × 4.72 inches | 2.6 × 2.32 × 0.67 inches | 2.32 × 2.6 × 0.67 inches | 5.51 × 4.33 × 1.97 inches | 11.8 × 7.11 × 2.05 inches | 9.45 × 6.69 × 4.53 inches |
| Weight | 1.32 pounds | 1.76 pounds | 0.86 kilograms | 0.34 kilograms | 15.9 ounces | 0.41 kilograms | 1.14 pounds | 1.51 pounds | 1.03 kilograms | 1.75 pounds | 0.32 kilograms | 0.32 kilograms | 10.9 ounces | 3.7 pounds | not specified |
| Color | black | black | black | black | black | black | not specified | not specified | not specified | Black | Black | Black | Copper | not specified | Tree Viper Green |
| Model | 14164 | 14176 | 14197 | 14210 | 14226 | 14223 | 14224 | 1011658 | 14234 | 14250 | 18017 | 18018 | 18019 | not specified | MXTP5LGR |
Choosing Your Custom Cooling Parts
-
Check Socket Compatibility
Verify that your CPU block supports your processor socket before purchasing. The Watercool HEATKILLER IV PRO Acetal block supports both AM4 and AM5 sockets, making it a versatile choice for modern AMD systems. In contrast, the HEATKILLER IV Basic AM4 model is limited to AM4 sockets only. Matching the block to your motherboard ensures proper mounting pressure and heat transfer. Always double-check the socket compatibility list in the product specifications to avoid purchasing incompatible hardware for your build.
-
Match Radiator Size to Case
Ensure your case can accommodate the physical dimensions of the radiator you select. The Alphacool NexXxos ST25 240mm Copper Radiator measures 2.36 inches in height, offering a slim profile for tight spaces. Standard 240mm models like the NexXxos XT45 are 1.77 inches tall. If you need triple-fan support, the NexXxos ST30 360mm X-Flow Radiator is 1.18 inches thick. Measure your case clearance carefully to guarantee the radiator fits without obstructing other components or requiring awkward fan placement.
-
Select Copper or Acetal
Material choice affects thermal performance and loop chemistry. Most radiators in this list, such as the Alphacool NexXxos 240mm Full Copper Radiator, use copper for superior heat dissipation. CPU blocks vary in material. The Watercool HEATKILLER IV PRO uses acetal, which is durable and compatible with various coolants. The HEATKILLER IV PRO Acrylic model features a clear top for aesthetics but retains a copper base. Choose copper radiators for maximum thermal mass and acetal blocks for lightweight durability and chemical compatibility.
-
Choose Coolant Volume
Determine the total coolant volume your loop requires before buying. Small loops with single radiators may only need a few ounces. Large custom loops with multiple radiators and components require more fluid. The Mayhems XT1 Premixed PC Coolant comes in a 5 Litre container, which is ideal for extensive builds. Premixed coolants save time by eliminating the need to mix distilled water with concentrate. Ensure the coolant color matches your aesthetic goals, as the XT1 is available in Tree Viper Green.
-
Consider GPU Block Fit
GPU blocks are highly specific to the exact graphics card model. The Bykski Galax RTX 2070 Full Coverage GPU Block is designed exclusively for Galax RTX 2070 Gamer cards. It measures 11.8 inches in length and 2.05 inches in height. You cannot use this block on other RTX 2070 variants or different GPU brands. Verify the physical dimensions and mounting hole pattern match your specific card. Custom GPU blocks offer full coverage cooling but require precise compatibility checks to ensure proper fit and function.
Frequently asked questions
Which radiators are best for compact cases?
The Alphacool NexXxos ST25 240mm Copper Radiator is ideal for slim cases. Its 2.36-inch length and 1.75-pound weight fit tight spaces while delivering full copper cooling. The NexXxos XT45 40mm Copper Radiator also serves compact builds by cooling small components where standard radiators are too large.
What is the best single fan copper radiator?
The Alphacool NexXxos UT60 140mm Full Copper Radiator is the top choice for single-fan setups. It provides dense copper thermal mass in a 7.32-inch length. This design suits builders who need precise single-fan footprints and prioritize thermal mass over raw fan count.
Which CPU block supports both AM4 and AM5?
The Watercool HEATKILLER IV PRO Acetal CPU Water Block supports both AM4 and AM5 sockets. It offers high flow rates and fitting compatibility. The HEATKILLER IV PRO Acrylic AMD Water Block also covers these sockets, providing clear tops for visual coolant display in AMD builds.
How do I choose a GPU water block?
Select a block that matches your specific graphics card model. The Bykski Galax RTX 2070 Full Coverage GPU Block is designed for Galax RTX 2070 Gamer owners. It provides clear aesthetics to display coolant color. Ensure the block dimensions fit your card's physical layout.
What size coolant do I need for a large loop?
The Mayhems XT1 Premixed PC Coolant comes in a 5 Litre volume. This ready-to-use solution is ideal for large custom loops. It offers component protection and thermal efficiency without requiring you to mix additives. The green color helps visualize flow in extensive systems.
Are there radiators for 92mm fan setups?
Yes, the Alphacool NexXxoS XT45 92mm Copper Radiator fits compact single-fan builds. It measures 3.94 inches in width and length with a 2.36-inch height. This specialized compact solution accommodates unique 92mm footprints for users with tight space constraints who cannot use standard fan sizes.
Which radiator is best for triple fan mounts?
The Alphacool NexXxos ST30 360mm X-Flow Radiator is designed for triple fan mounts. It delivers dense copper cooling in a slim 1.18-inch profile. This model fits builders who prioritize thermal performance over aesthetic customization in high-performance cooling setups.
What is the best 60mm copper radiator?
The Alphacool NexXxoS XT45 60mm Dual Copper Radiator is a solid budget option. It fits small builds with low heat output. The triple version offers similar compact dimensions for strict space limitations. Both provide reliable copper heat transfer in small footprints for tight cases.