8 Best Aio Liquid Coolers with G1/4, Compared
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You need reliable components for your custom loop. These are the best aio liquid coolers with g1 4 ports, ranked by their published specifications. The Fo Sa 360mm Copper Radiator leads because it uses copper for superior thermal conductivity. We compared 8 products to find the right fit for your build. Each pick is based strictly on the data provided by the manufacturers. This guide helps you decide which radiator or reservoir matches your case size and cooling needs.
Quick picks
The best fit for you
- You want the best overall copper radiator Fo Sa 360mm Copper Radiator It features a 360mm copper core with standard G1/4 threads.
- You need a large budget-friendly copper radiator FOSA 480mm Copper Radiator This 480mm copper unit offers high capacity with G1/4 ports.
- You require maximum heat dissipation for large cases greenDracaena 480mm Slim Copper Radiator The 480mm black copper radiator fits large builds with G1/4 threads.
- You want clear visibility of green coolant Wisoqu 200mm Acrylic AIO This acrylic reservoir holds green coolant and uses G1/4 threads.
- You need low-profile DDR4 RAM cooling KAGAUOAS 5.2" RAM Liquid Cooler The 5.2-inch RGB cooler fits DDR4 systems with G1/4 connections.
Our 8 picks
Fo Sa 360mm Copper Radiator
Best for: Custom loop builders needing a 360mm copper radiator
- Thread Size
- G1/4 (what this guide is about)
- Radiator Size
- 360mm
- Material
- Copper
- Weight
- 15.9 ounces
This Fo Sa unit is a 360mm copper radiator designed for custom liquid cooling loops. It features G1/4 inch threaded ports for tubing connections. The build uses copper for efficient heat exchange. It weighs 15.9 ounces. You should consider this if you need a standard 360mm form factor with reliable metal construction for your loop.
Pros
- 360mm radiator size for high heat dissipation
- Copper material for efficient heat transfer
- G1/4 inch threaded ports for tubing
Cons
- No integrated pump or fan included
- Basic copper construction without nickel plating
- No included mounting hardware listed
Good fit if
- You are building a custom loop with a 360mm fan setup
- You prefer copper radiators for thermal performance
- You need G1/4 inch threaded connections
Skip if
- You need an all-in-one cooler with fans
- You require nickel-plated radiators
- You want a pre-filled sealed unit
Verdict: Fo Sa 360mm Copper G1/4 Radiator is a solid choice for builders who want a dedicated heat exchanger for their custom loop. It fits users who prioritize copper thermal conductivity and standard G1/4 connections.
FOSA 480mm Copper Radiator
Best for: Large copper radiators with G1/4 ports
- Thread Size
- G1/4 (what this guide is about)
- Radiator Size
- 480mm
- Material
- Copper
- Weight
- 15.9 ounces
This FOSA radiator uses a 480mm copper heat exchanger with G1/4 threaded ports for your custom loop. The heavy copper construction helps dissipate heat effectively across a large surface area. It weighs 15.9 ounces and features compact, welded seams for durability. You get a reliable passive cooling component suitable for high-power systems. It is designed for users who prioritize material quality and standard thread compatibility.
Pros
- 480mm copper radiator size for high heat dissipation
- G1/4 threaded ports for easy fitting connection
- High-grade copper material for long-term use
- Low noise operation due to optimized design
Cons
- No included fans or pumps
- Passive component requires external airflow
- 15.9 ounces adds weight to the build
Good fit if
- You need a large 480mm copper radiator
- You prefer G1/4 threaded fittings
- You want high-quality copper construction
Skip if
- You require an all-in-one unit with fans
- You need a smaller 120mm or 240mm size
- You want a plastic or aluminum radiator
Verdict: FOSA 480mm Copper G1/4 Radiator is a solid choice for builders seeking a large, copper-based heat exchanger with standard G1/4 ports. It fits users who value material durability and high cooling potential in a passive component.
greenDracaena 480mm Slim Copper Radiator
Best for: large case custom loop builds
- Thread Size
- G1/4 (what this guide is about)
- Radiator Size
- 480mm
- Material
- Copper
- Dimensions
- 18.9 × 3.94 × 3.94 inches
- Weight
- 2.2 pounds
This greenDracaena unit is a 480mm copper radiator with a 28mm thickness and G1/4 threads. The brass water chamber and copper fins are designed for high heat dissipation. The black oxidation paint aims to improve thermal efficiency. You need space for a 480mm mount and fans on both sides. It suits builders prioritizing raw cooling surface area in a custom loop.
Pros
- 480mm length provides large heat exchange surface
- 28mm thickness accommodates high-airflow fans
- Copper fins and brass chamber for durability
- G1/4 threaded ports for tubing connections
- Black oxidation paint for thermal efficiency
Cons
- Heavy at 2.2 pounds
- Requires significant case space for 480mm mount
- No mention of included fittings or fans
Good fit if
- You have a case supporting 480mm radiators
- You want maximum copper surface area
- You are building a high-end custom loop
Skip if
- You need a compact 120mm or 240mm size
- You prefer lightweight aluminum components
- You want a pre-filled sealed unit
Verdict: greenDracaena 480mm Copper Radiator is a robust option for large cases. It fits users who need maximum heat dissipation capacity and have the space for a 480mm setup.
EDIY Pure Copper 360mm Radiator
Best for: Custom loop builders needing pure copper
- Thread Size
- G1/4 (what this guide is about)
- Radiator Size
- 360mm
- Material
- Copper
- Dimensions
- 4.72 × 0.98 × 4.72 inches
This EDIY cooler is a 360mm pure copper radiator designed for custom loops. It features a 30mm thickness and G1/4 inch barbs for fitting connections. The build uses T2 copper for fins, the water chamber, and the guard plate. It includes double round tubes with a 7mm inner diameter to support fluid flow. You get mounting screws for installation. It suits builders who prioritize copper heat exchange in a standard 360mm form factor.
Pros
- Constructed from pure T2 copper for fins, water chamber, and guard plate
- Includes two G1/4 inch threaded ports for fitting connections
- 30mm thickness provides ample surface area for heat dissipation
- Double round tubes with a 7mm inner diameter channel
Cons
- Requires separate purchase of fans and fittings
- No included pump or reservoir
- Standard copper finish without decorative coating
Good fit if
- You are building a custom loop with G1/4 fittings
- You prefer copper radiators for their thermal properties
- You need a 360mm size for your case
Skip if
- You need an all-in-one cooler with a pre-installed pump
- You require an aluminum radiator for weight savings
- You want a radiator with integrated RGB lighting
Verdict: The EDIY 360mm Copper Radiator G1/4 is a solid choice for custom loop builders who want pure copper construction. It fits well if you already have fans and fittings ready to go.
KAGAUOAS 5.2" RAM Liquid Cooler
Best for: low-profile DDR4 RAM cooling
- Thread Size
- G1/4 (what this guide is about)
- Lighting Type
- RGB
- Dimensions
- 5.2 × 1.57 × 0.55 inches
This KAGAUOAS waterblock fits up to four DIMMs on DDR3 or DDR4 memory modules. It features a transparent acrylic top over a copper heatsink and includes G1/4" threads for your custom loop tubing. The unit runs on 5V DC with 3-pin RGB lighting. Its compact dimensions measure 5.2 inches in length, 1.57 inches in width, and 0.55 inches in height. You should choose this if you need a low-profile block for dense RAM layouts.
Pros
- Supports up to 4 DIMMs for DDR3 and DDR4
- G1/4" threads for standard tubing connections
- Transparent acrylic top with RGB lighting
- Compact 0.55-inch height for low clearance
Cons
- Requires 5V DC power input
- Only supports 3-pin RGB connections
- Limited to DDR3 and DDR4 standards
Good fit if
- You have tight clearance around your RAM slots
- You are building a custom loop with G1/4 fittings
- You want to cool up to four memory channels
Skip if
- You use DDR5 memory modules
- You need 12V RGB lighting support
- You require a larger surface area for heat dissipation
Verdict: KAGAUOAS DDR4 RAM Cooler 5.2" RGB is a compact solution for builders with limited vertical space. It fits well in loops using standard G1/4 tubing and DDR4 memory. It is not suitable for DDR5 systems or 12V RGB setups.
Lizusidtsy 200mm Water Cooling Tank
Best for: small loops needing G1/4 plastic tanks
- Thread Size
- G1/4 (what this guide is about)
- Radiator Size
- 200mm
- Dimensions
- 8.66 × 5.12 × 3.94 inches
- Weight
- 7.27 ounces
This is a 200mm water cooling tank with G1/4 threads for your loop. The body uses high-temperature engineering plastics with an acrylic window. It measures 8.66 inches long and weighs 7.27 ounces. The red color stands out in your build. You can connect standard 45 mm diameter tubing directly. It offers a practical solution for long-term use in custom loops.
Pros
- G1/4 threaded ports for leak-free connections
- Acrylic transparent section for fluid visibility
- Fits 45 mm diameter tubing
- Lightweight at 7.27 ounces
Cons
- Plastic construction instead of metal
- No integrated pump or reservoir capacity data
- Single color option available
Good fit if
- You need a compact G1/4 tank for a small loop
- You prefer a red accent in your build
- You want a lightweight reservoir component
Skip if
- You require a metal radiator or tank
- You need a large capacity reservoir
- You want a black or clear color scheme
Verdict: Lizusidtsy 200mm Red Water Cooling Tank is a compact plastic reservoir for small custom loops. It fits users who need G1/4 connections and a lightweight red accent.
Wisoqu 200mm Acrylic AIO
Best for: clear coolant visibility in small loops
- Thread Size
- G1/4 (what this guide is about)
- Radiator Size
- 200mm
- Material
- Acrylic
- Coolant Color
- Green
This Wisoqu reservoir uses acrylic covers for a transparent look. It holds coolant with a 45mm tube diameter. The unit features G1/4 threads for tight fittings. You get green coolant included. The design uses engineering plastics for the caps. It is a simple addition to your loop. The size is 200mm. It suits builders who want clear visibility.
Pros
- Transparent acrylic upper and lower covers
- 45mm tube diameter for higher capacity
- G1/4 thread fittings for secure connections
- Includes green coolant for immediate use
Cons
- Smaller 200mm size compared to 360mm radiators
- No mention of LED lighting integration
- Basic plastic construction without metal accents
Good fit if
- You want a clear view of your coolant
- You need G1/4 thread compatibility
- You prefer a compact 200mm footprint
Skip if
- You require RGB lighting effects
- You need a large 480mm radiator
- You want a metal build finish
Verdict: Wisoqu 200mm Acrylic Reservoir offers clear visibility and standard G1/4 threads. It fits builders who want to see their green coolant in a compact loop.
BJETOP 120mm Slim Copper Radiator
Best for: Small cases needing slim G1/4 copper radiators
- Thread Size
- G1/4 (what this guide is about)
- Radiator Size
- 120mm
- Material
- Copper
- Dimensions
- 4.72 × 0.79 × 6.1 inches
This 120mm copper radiator features a slim 20mm profile with white oxidation paint. It includes 14 tubes and a standard G1/4 inch thread for compatibility with your loop components. The design prioritizes heat dissipation through high-density fins. It suits builders needing a compact, reliable heat exchanger for small cases or specific airflow layouts.
Pros
- Standard G1/4 inch thread for broad compatibility
- Copper construction with 14 tubes for efficient heat transfer
- Slim 20mm thickness saves space in tight cases
- White oxidation paint finish for aesthetic integration
Cons
- 120mm size offers limited surface area for high heat loads
- No included fans require separate purchase
- Slim profile may restrict fan speed options for airflow
Good fit if
- You need a compact radiator for a small form factor case
- You require a G1/4 inch threaded connection for your fittings
- You prefer a white finish to match your build theme
Skip if
- You need higher cooling performance than a 120mm can provide
- You prefer a thicker radiator for better heat dissipation
- You want a black finish instead of white
Verdict: BJETOP 120mm Copper G1/4 Radiator fits builders with small cases who need a slim, white, G1/4 threaded copper heat exchanger for their custom loop.
Specifications side by side
| Spec | Fo Sa 360mm Copper Radiator | FOSA 480mm Copper Radiator | greenDracaena 480mm Slim Copper Radiator | EDIY Pure Copper 360mm Radiator | KAGAUOAS 5.2" RAM Liquid Cooler | Lizusidtsy 200mm Water Cooling Tank | Wisoqu 200mm Acrylic AIO | BJETOP 120mm Slim Copper Radiator |
|---|---|---|---|---|---|---|---|---|
| Radiator Size | 360mm | 480mm | 480mm | 360mm | not specified | not specified | not specified | 120mm |
| Lighting Type | not specified | not specified | not specified | not specified | RGB | not specified | not specified | not specified |
| Lighting | not specified | not specified | not specified | not specified | RGB | not specified | not specified | not specified |
| Material | Copper | Copper | Copper | Copper | not specified | not specified | Acrylic | Copper |
| Coolant Color | not specified | not specified | not specified | not specified | not specified | not specified | Green | not specified |
| Size | not specified | 480mm | 480mm | not specified | not specified | not specified | not specified | 120Mm |
| Thread Size | G1/4 | G1/4 | G1/4 | G1/4 | G1/4 | G1/4 | G1/4 | G1/4 |
| Weight | 15.9 ounces | 15.9 ounces | 2.2 pounds | not specified | not specified | 7.27 ounces | not specified | not specified |
| Dimensions | not specified | not specified | 18.9 × 3.94 × 3.94 inches | 4.72 × 0.98 × 4.72 inches | 5.2 × 1.57 × 0.55 inches | 8.66 × 5.12 × 3.94 inches | not specified | 4.72 × 0.79 × 6.1 inches |
| Color | 360mm | 480mm | Black | 360mm Radiator | Black | red | Green | white |
| Model | not specified | fosa9g64cgakoh-04 | Osprey-Radiator-480-new | not specified | not specified | 451099A1 | Wisoqu6d4u02bgxw-12 | not specified |
Is G1/4 threading worth the upgrade?
G1/4 ports are the standard for custom loops. You need them to connect fittings, radiators, and reservoirs. The products listed all use this thread size. This ensures compatibility with most tubing and components. If you build a custom loop, G1/4 is essential. AIO users often skip it. They rely on proprietary connectors. Check your fittings before buying. The G1/4 thread allows flexibility. It lets you mix brands. It supports various radiator sizes. Verify your case fits the unit first.
Worth it if
- You are building a custom loop with G1/4 fittings.
- You want to mix components from different brands.
- You need standard connections for radiators and reservoirs.
Skip it if
- You are using a pre-filled AIO with proprietary connectors.
- You only need CPU water blocks without extra ports.
- You prefer closed-loop systems with no maintenance.
If you prefer simpler air setups, you can compare the best CPU coolers with 4 Heat Pipes by their published dimensions.
How We Selected These Parts
You find these parts by scanning Amazon listings for the G1/4 thread size. We only include items where the title or feature list explicitly states this connection type. This ensures every product fits standard custom loop fittings. We do not handle the hardware ourselves. All details come directly from the published specifications on each listing.
We order the results by availability first. Next, we sort by the listing's overall rating, weighted by the number of ratings. Finally, we rank by how many guide criteria the specs meet. We show only one size or variant per product family. Prices and stock levels update daily on the page and are not part of this text.
Check Specs For Your Build
-
Match Copper To Loop Needs
Copper offers excellent thermal conductivity for heat exchange. Most options here use copper cores, including the Fo Sa and FOSA models. Choose copper if you prioritize maximum cooling performance in a passive component. Pure copper construction, like the EDIY unit, ensures consistent heat dissipation. Verify the material matches your loop chemistry to prevent galvanic corrosion when mixing metals. Copper is standard for radiators and reservoirs in most custom builds.
-
Verify Case Radiator Clearance
Radiator length determines fitment in your chassis. The list includes 120mm, 360mm, and 480mm sizes. The BJETOP 120mm fits small cases, while the greenDracaena 480mm requires ample space. Measure your case mounting points before purchasing. A 480mm radiator provides more surface area but needs a larger chassis. Ensure your case supports the specific length you select to avoid installation issues later.
-
Check Reservoir Material
Reservoirs come in plastic or acrylic. The Lizusidtsy tank uses plastic, keeping weight low for small loops. The Wisoqu unit uses acrylic for clear coolant visibility. Acrylic shows off green coolant colors well. Plastic is lighter and less prone to cracking. Select your material based on weight constraints and aesthetic preferences. Both types feature G1/4 threads for standard fitting compatibility in custom loops.
-
Confirm RAM Cooler Compatibility
Not all RAM coolers fit every memory type. The KAGAUOAS unit is designed for DDR4 systems only. It does not support DDR5 modules or 12V RGB setups. Check your memory generation before buying. This compact cooler fits low-profile builds with standard G1/4 tubing. Verify your RAM height and type to ensure the cooler clears your modules properly. Using the wrong cooler can block access or fail to fit.
-
Assess Weight And Space
Component weight affects case stress and mounting. The Fo Sa 360mm weighs 15.9 ounces, while the greenDracaena 480mm weighs 2.2 pounds. Heavier radiators need sturdy mounting points. The Wisoqu reservoir is lightweight and compact. Consider the total weight of your loop components. Heavier items may require additional support brackets. Check dimensions to ensure parts fit within your case limits without obstructing other components.
Frequently asked questions
What is the best copper radiator for a custom loop?
The Fo Sa 360mm Copper Radiator is the top choice for most builders. It features a copper core with standard G1/4 threads. This design prioritizes thermal conductivity for efficient heat exchange. It weighs 15.9 ounces and fits standard custom loop setups. You get a reliable heat exchanger without extra complexity.
Which G1/4 radiator offers the best value?
The FOSA 480mm Copper Radiator is the best budget option. It provides a large 480mm copper surface area for high cooling potential. The unit includes standard G1/4 ports for easy fitting connections. It weighs 15.9 ounces, making it a lightweight yet capable passive cooling component for your loop.
Can I use these parts in small cases?
Yes, but you must select the correct size. The BJETOP 120mm Slim Copper Radiator is designed for small cases. It features a slim profile with G1/4 threads and a white copper core. The EDIY 360mm is also available for slightly larger builds. Always verify your case dimensions before purchasing.
What is the best reservoir for a G1/4 loop?
The Wisoqu 200mm Acrylic Reservoir is ideal for clear coolant visibility. It features standard G1/4 threads and comes with green coolant pre-filled. The acrylic body allows you to monitor fluid levels easily. It is a compact option that fits well in small custom loop builds requiring clear aesthetics.
Are there G1/4 options for RAM cooling?
The KAGAUOAS 5.2 RAM Liquid Cooler is a dedicated option. It uses G1/4 threading for standard tubing connections. The unit is designed specifically for low-profile DDR4 RAM modules. It includes RGB lighting for visual appeal. Note that it is not suitable for DDR5 systems or 12V RGB setups.
Which radiator is best for large cases?
The greenDracaena 480mm Slim Copper Radiator is built for large cases. It offers maximum heat dissipation capacity with a 480mm length. The black finish suits many aesthetic preferences. It weighs 2.2 pounds, indicating a robust construction. This model is best for builders who have ample space for large heat exchangers.
Do all listed products use G1/4 threads?
Yes, every product on this list uses G1/4 threading. This standard ensures compatibility with most custom loop fittings and tubing. Whether you choose a copper radiator, an acrylic reservoir, or a RAM cooler, the connection type remains consistent. This uniformity simplifies the assembly process for your custom liquid cooling loop.