6 Best Alternatives to the Fo Sa Copper Radiator PC Water (2026)

How alternatives compare to Fo Sa

FOSA 480mm Copper Radiator

The FOSA 480mm Copper Radiator increases your cooling surface area significantly compared to the Fo Sa 360mm model. It maintains the same 15.9-ounce weight and G1/4 thread standard, ensuring compatibility with your existing fittings. This larger footprint allows for more heat dissipation, which is beneficial if you have a high-end CPU or GPU. However, you need a case with a 480mm mount, which is less common than 360mm slots. If your chassis supports it, this radiator offers superior thermal mass without adding extra weight. It is the logical upgrade for builders who have the space and need more cooling headroom.

greenDracaena 480mm Slim Copper Radiator

The greenDracaena 480mm Slim Copper Radiator differs in both dimensions and material finish. It weighs 2.2 pounds, making it heavier than the 15.9-ounce Fo Sa unit. The black color option provides a distinct aesthetic compared to standard copper finishes. While it shares the G1/4 thread standard, its 480mm length requires more space. This model is designed for enthusiasts who prioritize thermal performance over compact size. The increased mass and surface area handle higher heat loads more effectively. You should choose this if you have a spacious case and want a darker look that still relies on copper conductivity for reliable heat exchange in custom loops.

EDIY Pure Copper 360mm Radiator

The EDIY Pure Copper 360mm Radiator matches the Fo Sa size but emphasizes construction quality. It uses thick T2 copper, which may offer better thermal conductivity than standard alloys. The dimensions are similar, fitting standard 360mm fan mounts. It retains the G1/4 thread size for easy integration into your loop. This option is ideal if you suspect the original radiator might be thinner or less dense. You get a robust heat exchanger without needing to change your case layout. The focus is on pure thermal performance through material thickness. If you want a 360mm radiator with potentially higher thermal mass and standard fittings, this is a strong alternative.

BJETOP 120mm Slim Copper Radiator

The BJETOP 120mm Slim Copper Radiator serves a completely different use case. It is much smaller, fitting into a single 120mm slot rather than a triple 120mm setup. It weighs significantly less and has a white finish, offering a clean aesthetic for compact builds. While it uses G1/4 threads, its cooling capacity is limited by its small size. You should pick this only if you have a small form factor case with limited radiator space. It sacrifices raw cooling power for flexibility and style. This is not a direct replacement for high-performance needs but a practical solution for builders with tight spatial constraints who still want copper core benefits.

KAGAUOAS 5.2" RAM Liquid Cooler

The KAGAUOAS 5.2" RAM Liquid Cooler is not a radiator but a water block for memory. It does not compare directly in cooling surface area. Instead, it adds RGB lighting to DDR3 or DDR4 RAM sticks. It uses G1/4 threads for tubing connections, matching the standard of the Fo Sa radiator. You would use this alongside a radiator like the Fo Sa model, not as a replacement. It is for builders who want visible lighting on their memory modules. If you need actual heat dissipation for your CPU or GPU, this product will not help. It is an aesthetic addition for custom loops that already have adequate radiator cooling capacity.

Lizusidtsy 200mm Water Cooling Tank

The Lizusidtsy 200mm Water Cooling Tank is a reservoir, not a heat exchanger. It holds coolant rather than dissipating heat. It features G1/4 threads for fittings, compatible with your loop tubing. The red color provides a visual accent in your build. You need this to store and degas coolant, not to replace the radiator. It is compact, measuring 8.66 inches in length, and weighs 7.27 ounces. This item is essential for maintaining fluid levels and visibility in your custom loop. It complements the Fo Sa radiator by completing the circuit. Choose this if you need a reliable tank to pair with your existing cooling components.

Quick picks

Our 7 picks

1 Best overall

Fo Sa 360mm Copper Radiator

Best for: 360mm copper heat exchangers

Radiator Size

360mm

Material

Copper

Thread Size

G1/4

Weight

15.9 ounces

View on Amazon: Fo Sa 360mm Copper Radiator Affiliate link

The Fo Sa 360mm Copper Radiator is a 360mm heat exchanger built from copper with G1/4 threads. It weighs 15.9 ounces. The design aims for high performance cooling with low noise levels. This unit suits users who need a standard 360mm footprint for their loop. It provides a solid copper core for heat dissipation.

Pros

• 360mm radiator size
• Copper construction
• G1/4 thread fittings
• 15.9 ounces weight

Cons

• Only 360mm size available
• No fan included
• Single thread size listed

Good fit if

• You need a 360mm copper radiator
• You prefer G1/4 thread connections
• You want a lightweight copper core

Skip if

• You need 120mm or 240mm sizes
• You require pre-installed fans
• You need different thread sizes

Verdict: Fo Sa 360mm Copper Radiator fits builders needing a standard 360mm copper core with G1/4 threads for their custom loop.

2 Also great

FOSA 480mm Copper Radiator

Best for: Custom loops needing large copper cooling surface

Radiator Size

480mm

Material

Copper

Thread Size

G1/4

Weight

15.9 ounces

View on Amazon: FOSA 480mm Copper Radiator Affiliate link

This FOSA radiator is a 480mm heat exchanger built from high-grade copper. It features G1/4 threaded ports for easy connection to your tubing. The design emphasizes low noise and compact portability. Weighing 15.9 ounces, it offers a balance of surface area and weight. You should consider this unit if you need a reliable, passive cooling component for a custom loop.

Pros

• Constructed from high-grade copper for effective heat dissipation
• Includes G1/4 threaded ports for standard tubing connections
• 480mm size provides substantial surface area for cooling
• Low noise operation due to optimized fin design

Cons

• Sold as a passive component without included fans
• No software control or monitoring capabilities
• Weight of 15.9 ounces may require sturdy mounting

Good fit if

• You are building a custom loop with G1/4 fittings
• You need a large 480mm cooling surface area
• You prefer passive copper heat exchangers over aluminum

Skip if

• You require an all-in-one unit with integrated fans
• You need RGB lighting or aesthetic customization
• You are using non-standard fitting sizes

Verdict: FOSA 480mm Copper Radiator G1/4 is a solid choice for builders prioritizing copper conductivity and a large 480mm footprint. It fits users who already have fans and tubing ready for a custom loop.

3 Best premium

greenDracaena 480mm Slim Copper Radiator

Best for: High-performance custom loops

Radiator Size

480mm

Material

Copper

Thread Size

G1/4

Dimensions

18.9 × 3.94 × 3.94 inches

Weight

2.2 pounds

View on Amazon: greenDracaena 480mm Slim Copper Radiator Affiliate link

The greenDracaena 480mm radiator uses copper fins and a brass chamber for efficient heat dissipation. Its 28mm thickness accommodates high-airflow fans for maximum cooling. The black oxidation finish helps improve thermal efficiency. You get G1/4 threads for standard fittings. This unit weighs 2.2 pounds and measures 18.9 inches long. It suits builders needing robust heat exchange for large custom loops.

Pros

• 480mm size supports large fan mounts
• 28mm thickness for high-airflow fans
• Copper fins and brass water chamber
• Black oxidation paint for thermal efficiency
• G1/4 thread fittings included

Cons

• 28mm thickness may not fit tight cases
• No pump or fans included
• No software control for fan curves

Good fit if

• You need maximum surface area for heat
• You have space for a 28mm thick unit
• You prefer copper and brass materials

Skip if

• You need a slim 15mm radiator
• You want an all-in-one pre-filled unit
• You require RGB lighting control

Verdict: The greenDracaena 480mm Copper Radiator delivers serious cooling capacity for spacious builds. It fits enthusiasts who prioritize thermal performance over compact dimensions.

4 Also great

EDIY Pure Copper 360mm Radiator

Best for: Custom loop builders needing high thermal mass

Radiator Size

360mm

Material

Copper

Thread Size

G1/4

Dimensions

4.72 × 0.98 × 4.72 inches

View on Amazon: EDIY Pure Copper 360mm Radiator Affiliate link

This EDIY 360mm radiator uses T2 copper for the fins, water chamber, and guard plate. It features a 30mm thickness and G1/4 inch threads for standard fittings. The internal design includes six 7mm channels to improve water flow. It supports 12cm fans and comes with mounting screws. This unit suits builders who prioritize high thermal mass and durable copper construction for their custom loop.

Pros

• Constructed from T2 copper fins and water chamber
• 30mm thickness provides substantial heat dissipation surface
• Six 7mm internal channels enhance coolant flow
• Standard G1/4 inch threaded ports for fittings

Cons

• No integrated pump or fan included
• Requires separate purchase of 12cm fans
• Heavy solid copper build increases case weight

Good fit if

• You are building a custom loop with separate components
• You prefer copper over aluminum for corrosion resistance
• You need a 360mm radiator for high airflow

Skip if

• You need an all-in-one cooler with a pump
• You are looking for an aluminum alternative
• You require a thinner 20mm radiator profile

Verdict: The EDIY 360mm Pure Copper Radiator delivers robust heat exchange through its thick T2 copper construction. It fits best for custom loop builders who want high thermal mass and standard G1/4 fittings without integrated fans or pumps.

5 Best 120mm

BJETOP 120mm Slim Copper Radiator

Best for: compact cases with white themes

Radiator Size

120mm

Material

Copper

Thread Size

G1/4

Dimensions

4.72 × 0.79 × 6.1 inches

View on Amazon: BJETOP 120mm Slim Copper Radiator Affiliate link

This BJETOP radiator is a 120mm copper heat exchanger with a slim 20mm profile. It features a white oxidized finish and standard G1/4 threaded ports for easy connection to your loop. The dense copper fins provide a large surface area for heat transfer. You should choose this if you need a compact, aesthetic component that fits in tight spaces or specific case layouts.

Pros

• 120mm copper construction for effective heat dissipation
• Slim 20mm thickness saves internal case space
• Standard G1/4 thread ports ensure compatibility
• White oxidized finish for a clean look

Cons

• Slim 20mm design offers less surface area than thicker radiators
• 120mm size has lower total cooling capacity than 240mm or 360mm options
• White finish may show dirt or discoloration over time

Good fit if

• You have limited case depth and need a slim radiator
• You want a white aesthetic to match other components
• You are building a compact PC with a 120mm fan slot

Skip if

• You need maximum cooling performance for high-end CPUs
• You prefer a black radiator for a dark theme
• You require a thicker radiator for better airflow penetration

Verdict: BJETOP 120mm Copper Radiator is a practical, space-saving option for builders who prioritize aesthetics and compactness over raw cooling power. It fits well in small form factor builds where a 120mm slot is the only available space.

6 Best rgb

KAGAUOAS 5.2" RAM Liquid Cooler

Best for: RGB lighting on DDR3/4 RAM

Lighting Type

RGB

Thread Size

G1/4

Dimensions

5.2 × 1.57 × 0.55 inches

View on Amazon: KAGAUOAS 5.2" RAM Liquid Cooler Affiliate link

This KAGAUOAS RAM waterblock fits up to four DDR3 or DDR4 DIMMs. It measures 5.2 by 1.57 by 0.55 inches. The block uses a copper heatsink with a transparent acrylic top. It includes 5V DC 3-pin RGB lighting. You need G1/4 inch threads for your loop. This unit suits builders who want visible RGB on their memory.

Pros

• Supports up to 4 DDR3/DDR4 DIMMs
• Features 5V DC 3-pin RGB lighting
• Uses G1/4 inch thread fittings
• Copper heatsink with acrylic top

Cons

• Requires a custom loop with G1/4 threads
• Only supports 5V 3-pin RGB
• Small surface area for heat dissipation

Good fit if

• You have a custom liquid cooling loop
• You use DDR3 or DDR4 RAM
• You want RGB lighting on your RAM

Skip if

• You need a plug-and-play cooler
• You use DDR5 RAM
• You prefer non-RGB components

Verdict: KAGAUOAS RAM Waterblock is a small, RGB-lit block for DDR3/4 RAM. It fits custom loops with G1/4 threads. It suits users who want visible lighting on their memory modules.

7 Best budget

Lizusidtsy 200mm Water Cooling Tank

Best for: Compact custom loop reservoirs

Radiator Size

200mm

Thread Size

G1/4

Dimensions

8.66 × 5.12 × 3.94 inches

Weight

7.27 ounces

View on Amazon: Lizusidtsy 200mm Water Cooling Tank Affiliate link

This 200mm water cooling tank uses a 45 mm diameter tube to hold and speed up cooling. The upper and lower covers are made of high temperature engineering plastics, while the transparent section is acrylic. It features advanced G1/4 threads for tight, leak-free connections. The red unit measures 8.66 inches in length and weighs 7.27 ounces. It suits builders who need a compact, durable reservoir for their custom loop.

Pros

• 200mm size fits compact builds
• 45 mm diameter tube for faster cooling
• G1/4 threads for secure connections
• Acrylic transparent section for visibility
• High temperature plastic covers

Cons

• Only includes one reservoir, not a full radiator
• No pump or fan included in specs
• Red color limits aesthetic matching

Good fit if

• You need a compact reservoir for a 200mm loop
• You want visible coolant levels
• You prefer durable plastic construction

Skip if

• You need a full radiator for heat exchange
• You require a black or clear color
• You want an all-in-one cooling unit

Verdict: Lizusidtsy 200mm Red Water Cooling Tank provides a compact, durable reservoir for custom loops. It fits builders who need a small, visible tank with reliable G1/4 connections.

Specifications side by side

Frequently asked questions

See also

• express water roalk10d alternatives
• kingdel industrial PC alternatives