6 Best Alternatives to the EKWB EK-Quantum Volume FLT 240 (2026)
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The EKWB EK-Quantum Volume FLT 240 is a standard reservoir for custom loops. It offers a 225 ml acrylic tank with digital RGB lighting. If you need ekwb ek quantum volume flt 240 alternatives, you might look for different features or brands. Some builders prefer larger capacities or specific pump compatibility. Others want a different shape or material finish.
We selected these 6 options because their specs overlap with the original product. This list includes acrylic reservoirs and pump tops with digital RGB lighting. You can find models designed for D5 or DDC pumps. Some alternatives offer spherical designs, while others focus on compact dimensions. Each choice provides a distinct look or connection type. You can match your loop’s requirements without compromising on aesthetics. The following picks cover various capacities and mounting styles. This helps you find a part that fits your case and cooling needs.
Our top pick: EKWB EK-Quantum Volume FLT 240 Acrylic Reservoir.
How alternatives compare to EKWB
Alphacool Eisball D5 Reservoir and Pump Top
The Alphacool Eisball D5 combines a reservoir with a pump top, unlike the EKWB unit which is just a tank. It holds 700 ml, which is significantly more than the 225 ml capacity of the EKWB. Both use acrylic and digital RGB lighting. The Alphacool option is smaller in footprint but requires a D5 pump. You should pick this if you want a large coolant volume and integrated pumping in one compact, spherical component. It sacrifices the separate mounting flexibility of the EKWB for a unified look and higher capacity.
Alphacool Eisball 700ml D5 Reservoir
This Alphacool Eisball 700ml D5 Pump Combo offers a 700 ml reservoir with D5 pump compatibility. The EKWB EK-Quantum Volume FLT 240 is a standalone 225 ml tank. Both feature acrylic construction and digital RGB lighting. The Alphacool unit provides much more coolant volume and integrates the pump directly. It is ideal for builders who prioritize large capacity and a classic spherical aesthetic. You should choose this alternative if you are building a loop with a D5 pump and want to maximize coolant volume without needing a separate pump mount.
Alphacool Eisblock XPX Aurora CPU Water Block
The Alphacool Eisblock XPX Aurora is a CPU water block, not a reservoir. It differs fundamentally from the EKWB EK-Quantum Volume FLT 240, which is a coolant tank. Both products feature digital RGB lighting and acrylic materials. The CPU block is designed for processor cooling with compact dimensions, while the EKWB unit manages coolant storage. You should pick the Alphacool block if you need to cool your CPU in a custom loop. It is not a direct replacement for the reservoir but complements it by providing the necessary cooling component with similar aesthetic lighting.
EK EK-Quantum Volume 3 FLT Reservoir
The EKWB Volume 3 FLT Reservoir is a newer iteration from the same brand. It features acrylic material and RGB lighting, similar to the EKWB EK-Quantum Volume FLT 240. The Volume 3 is designed for tight cases with flexible port options. The original FLT 240 has a larger 225 ml capacity. You should consider the Volume 3 if space is limited in your build. It offers a more compact form factor while maintaining the brand’s acrylic quality and lighting capabilities. It is a better fit for small form factor builds that require efficient use of space.
Alphacool Eisdecke D5 Plexi Pump Top
The Alphacool Eisdecke D5 Plexi Pump Top is a clear acrylic mount for D5 pumps. It lacks the reservoir capacity and digital RGB lighting found in the EKWB EK-Quantum Volume FLT 240. The EKWB unit is a 225 ml tank with lighting, while this Alphacool top is purely a transparent cover. You should pick this if you want a clean, transparent look for your pump without extra coolant storage or lighting effects. It is a minimalist option for builders who prefer to show off the pump itself rather than having a lit reservoir.
Phanteks Glacier R220C Acrylic Reservoir
The Phanteks Glacier R220C is a 200 ml reservoir designed for DDC pumps. It uses acrylic and digital RGB lighting, similar to the EKWB EK-Quantum Volume FLT 240. The capacity is slightly lower at 200 ml compared to the 225 ml of the EKWB. It is optimized for DDC pump compatibility. You should choose this if your loop uses a DDC pump and you need a compact tank. It offers synchronized RGB lighting and transparent acrylic, making it a suitable alternative for builders who prioritize pump-specific compatibility and a smaller footprint.
Quick picks
Our 7 picks
EKWB EK-Quantum Volume FLT 240 Acrylic Reservoir
Best for: Standard 240mm custom loops
- Lighting
- Digital RGB
- Material
- Acrylic
- Reservoir Capacity
- ~225ml
- Thread Size
- 4 x G1/4"
- Dimensions
- 19.7 × 19.7 × 11 inches
- Weight
- 2.16 pounds
View on Amazon: EKWB EK-Quantum Volume FLT 240 Acrylic Reservoir Affiliate link
This reservoir combines a 225ml capacity with a 240mm footprint for custom loops. It uses premium acrylic and includes four G1/4" ports for easy fittings. Digital RGB lighting adds visual flair to your build. The unit weighs 2.16 pounds and measures 240x120x53.5mm. It suits builders who want a reliable, well-lit reservoir that fits standard radiator spaces.
Pros
- 225ml fluid capacity
- Four G1/4" ports
- Digital RGB lighting
- Premium acrylic construction
Cons
- 2.16 pounds weight adds bulk
- No pump included in the package
- Acrylic material scratches more easily than glass
Good fit if
- You need a 240mm compatible reservoir
- You want digital RGB effects
- You prefer acrylic over glass
Skip if
- You require a built-in pump
- You need glass reservoirs
- You want a smaller footprint
Verdict: EKWB EK-Quantum Volume FLT 240 offers a balanced mix of capacity and lighting for standard 240mm setups. It fits you if you prioritize acrylic durability and addressable RGB in a compact form.
Alphacool Eisball D5 Reservoir and Pump Top
Best for: custom loops with existing D5 pumps
- Lighting
- 22 digital RGB LEDs, 5 VDC, 4-pin
- Reservoir Capacity
- 700 ml
- Thread Size
- G1/4
- Material
- Acrylic, Plexi
- Pump Compatibility
- D5
- Dimensions
- 4.63 × 5.04 × 5.04 inches
View on Amazon: Alphacool Eisball D5 Reservoir and Pump Top Affiliate link
This Alphacool unit combines a 700 ml transparent nylon reservoir with a D5-compatible pump top. The digital RGB lighting adds visual flair to your loop. Measuring 117.51 x 128 x 128 mm, it fits standard 240 mm radiator setups. You get a reliable acrylic and acetal build. It suits builders who want a spherical design without integrated pump electronics.
Pros
- 700 ml reservoir capacity
- Digital RGB lighting
- Transparent nylon construction
- D5 pump top compatibility
Cons
- Pump is not included
- No integrated pump control
- Larger footprint than flat reservoirs
Good fit if
- You already own a D5 pump
- You prefer spherical reservoir designs
- You want digital RGB effects
Skip if
- You need an all-in-one pump solution
- You have limited case space
- You prefer silent pump operation
Verdict: Alphacool Eisball Reservoir D5 Pump Top offers a large 700 ml volume for custom loops. It is ideal for builders who already have a D5 pump and want a distinctive spherical look.
Alphacool Eisball 700ml D5 Reservoir
Best for: spherical reservoir loops with D5 pumps
- Lighting
- 22 digital RGB LEDs, 5VDC, 4-Pin
- Reservoir Capacity
- 700 ml
- Thread Size
- G1/4
- Material
- Acrylic, Plexi
- Dimensions
- 2.01 × 5.04 × 5.04 inches
- Weight
- 2.03 pounds
View on Amazon: Alphacool Eisball 700ml D5 Reservoir Affiliate link
This Alphacool Eisball combines a 700 ml reservoir with a D5 pump. It uses transparent nylon for the ball and acetal for the holder. The unit supports Digital RGB lighting. Its dimensions are 117.51 x 128 x 128 mm. It weighs 2.03 pounds. You get a complete cooling loop component in one package. This setup suits builders who want a spherical aesthetic without separate parts.
Pros
- 700 ml transparent nylon reservoir capacity
- Integrated D5 pump compatibility
- Digital RGB lighting support
- Acetal pump holder material
Cons
- Pump is not included in the package
- Acrylic plexi material listed in attributes conflicts with nylon reservoir
- No app or remote control mentioned
Good fit if
- You want a spherical reservoir design
- You need a 700 ml fluid capacity
- You are using a D5 pump
Skip if
- You require the pump to be included
- You prefer a different reservoir shape
- You need app-based lighting control
Verdict: Alphacool Eisball 700ml D5 Pump Combo offers a large 700 ml spherical reservoir with D5 pump compatibility. It fits builders who prioritize volume and a classic round look for their loop.
Alphacool Eisblock XPX Aurora CPU Water Block
Best for: Custom loop builders seeking compact RGB CPU blocks
- Socket Compatibility
- LGA 1700, AM5, LGA 1200
- Lighting
- ARGB
- Material
- Nickel-plated copper, acrylic
- Thread Size
- G1/4
- Coolant Type
- Deionized Water
- Dimensions
- 2.98 × 2.98 × 1.3 inches
View on Amazon: Alphacool Eisblock XPX Aurora CPU Water Block Affiliate link
This Alphacool Eisblock XPX Aurora CPU water block features nickel-plated copper construction and digital RGB lighting. It supports both Intel and AMD sockets with two G1/4" threads. The block measures 75.8 x 75.8 x 33 mm and weighs 7.27 ounces. It suits builders seeking a compact, visually integrated solution for their liquid cooling loop without requiring a pump top.
Pros
- Nickel-plated copper base material for efficient heat transfer
- Digital RGB lighting for synchronized aesthetic control
- Compact dimensions of 75.8 x 75.8 x 33 mm
- Compatible with both Intel and AMD CPU sockets
Cons
- No integrated pump or reservoir included in the package
- Maximum working temperature limited to 60 degrees Celsius
- Requires separate purchase of mounting hardware for specific sockets
Good fit if
- You want a high-quality CPU block with digital RGB lighting
- You are building a custom loop with a separate pump
- You need a compact block for smaller cases
Skip if
- You prefer a pre-assembled reservoir and pump combo
- You require a block with a maximum temperature above 60 degrees Celsius
- You are looking for a complete all-in-one cooling solution
Verdict: Alphacool Eisblock XPX Aurora CPU Block delivers reliable cooling performance and sleek digital RGB lighting for custom loop builders. It is an ideal choice for users who prioritize aesthetics and compact dimensions in their liquid cooling setup.
EK EK-Quantum Volume 3 FLT Reservoir
Best for: tight cases needing flexible ports
- Lighting
- D-RGB
- Reservoir Capacity
- ~250ml
- Thread Size
- G1/4"
- Material
- Acrylic, Plexi
- Dimensions
- 5.45 × 5.04 × 5.04 inches
View on Amazon: EK EK-Quantum Volume 3 FLT Reservoir Affiliate link
This EKWB reservoir uses flat acrylic plexi to save space in your loop. It holds about 250ml of coolant and features nine G1/4 ports for flexible tubing connections. Digital RGB lighting adds visual appeal. Its compact 40mm thickness fits well in tight cases. You get a reliable component for standard builds without complex software requirements.
Pros
- Flat 40mm thickness saves case space
- Nine G1/4 ports for loop flexibility
- Digital RGB lighting included
- ~250ml coolant capacity
Cons
- Acrylic material scratches easier than glass
- No software control for RGB listed
- Pump not included in the package
Good fit if
- You need a low-profile reservoir for tight cases
- You want multiple connection points for your loop
- You prefer simple digital RGB control
Skip if
- You require glass for maximum clarity
- You want a pump included with the reservoir
- You need software-based lighting customization
Verdict: EKWB Volume 3 FLT 240 Reservoir is a solid choice for builders prioritizing space efficiency and connection options. It suits those who want straightforward RGB lighting without complex setup.
Alphacool Eisdecke D5 Plexi Pump Top
Best for: D5 pumps needing a clear acrylic mount
- Material
- Plexi (acrylic)
- Thread Size
- G1/4
- Radiator Size
- 40mm
- Pump Compatibility
- D5
- Coolant Color
- Clear
- Dimensions
- 3.15 × 3.15 × 1.57 inches
View on Amazon: Alphacool Eisdecke D5 Plexi Pump Top Affiliate link
This is a clear acrylic pump top designed for the D5 pump. It features five G1/4 inch ports and includes three plugs for unused connections. The unit measures 83 by 80 by 87 millimeters with its stands. You get a transparent look for your loop. It suits builders who want a simple, durable mount without integrated lighting or reservoir functions.
Pros
- Compatible with D5 pumps
- Five G1/4 inch ports
- Includes three G1/4 inch plugs
- Clear acrylic material
Cons
- No integrated reservoir
- No digital RGB lighting
- Pump not included
Good fit if
- You need a simple mount for a D5 pump
- You want a clear acrylic finish
- You prefer separate reservoir and pump components
Skip if
- You require an all-in-one reservoir and pump combo
- You want built-in RGB lighting
- You need a larger volume for fluid storage
Verdict: Alphacool Eisdecke D5 Pump Top V.3 is a straightforward acrylic mount for D5 pumps. It fits builders who want a clean, transparent look and do not need integrated lighting or reservoir capacity.
Phanteks Glacier R220C Acrylic Reservoir
Best for: DDC pump loops with RGB lighting needs
- Lighting
- Digital-RGB
- Material
- Acrylic
- Reservoir Capacity
- 200 ml
- Pump Compatibility
- DDC
- Dimensions
- 3.15 × 8.66 × 1.34 inches
View on Amazon: Phanteks Glacier R220C Acrylic Reservoir Affiliate link
The Phanteks Glacier R220C is a 200 ml reservoir designed for DDC pumps. It features transparent acrylic construction with a black finish. Integrated digital-RGB lighting allows synchronization with compatible case headers or motherboards. The unit supports vertical or horizontal mounting. An inner tube design helps minimize air bubbles. It includes a universal fan bracket for flexible installation.
Pros
- 200 ml reservoir capacity for DDC pumps
- Transparent acrylic body with black accents
- Integrated digital-RGB lighting with 3-pin header support
- Vertical or horizontal mounting options
- Inner tube design reduces air bubbles
Cons
- 200 ml capacity is smaller than many 240mm alternatives
- Digital-RGB requires compatible motherboard or case header
- Pump is not included in the package
Good fit if
- You are building a loop with a DDC pump
- You want transparent acrylic with digital-RGB lighting
- You need flexible vertical or horizontal mounting
Skip if
- You require a larger reservoir capacity
- You are using a D5 pump
- You prefer opaque reservoir materials
Verdict: Phanteks Glacier R220C DDC Reservoir suits builders who need a compact 200 ml tank for DDC pumps with synchronized RGB lighting. It fits well in builds prioritizing transparent acrylic and flexible mounting orientations.
Specifications side by side
| Spec | EKWB EK-Quantum Volume FLT 240 Acrylic Reservoir | Alphacool Eisball D5 Reservoir and Pump Top | Alphacool Eisball 700ml D5 Reservoir | Alphacool Eisblock XPX Aurora CPU Water Block | EK EK-Quantum Volume 3 FLT Reservoir | Alphacool Eisdecke D5 Plexi Pump Top | Phanteks Glacier R220C Acrylic Reservoir |
|---|---|---|---|---|---|---|---|
| Socket Compatibility | not stated | not stated | not stated | LGA 1700, AM5, LGA 1200 | not stated | not stated | not stated |
| Lighting | Digital RGB | 22 digital RGB LEDs, 5 VDC, 4-pin | 22 digital RGB LEDs, 5VDC, 4-Pin | ARGB | D-RGB | not stated | Digital-RGB |
| Material | Acrylic | not stated | not stated | Nickel-plated copper, acrylic | not stated | Plexi (acrylic) | Acrylic |
| Reservoir Capacity | ~225ml | 700 ml | 700 ml | not stated | ~250ml | not stated | 200 ml |
| Thread Size | 4 x G1/4" | G1/4 | G1/4 | G1/4 | G1/4" | G1/4 | not stated |
| Radiator Size | not stated | not stated | not stated | not stated | not stated | 40mm | not stated |
| Coolant Type | not stated | not stated | not stated | Deionized Water | not stated | not stated | not stated |
| Pump Compatibility | not stated | D5 | not stated | not stated | not stated | D5 | DDC |
| Coolant Color | not stated | not stated | not stated | not stated | not stated | Clear | not stated |
| Dimensions | 19.7 × 19.7 × 11 inches | 4.63 × 5.04 × 5.04 inches | 2.01 × 5.04 × 5.04 inches | 2.98 × 2.98 × 1.3 inches | 5.45 × 5.04 × 5.04 inches | 3.15 × 3.15 × 1.57 inches | 3.15 × 8.66 × 1.34 inches |
| Weight | 2.16 pounds | 1.42 pounds | 2.03 pounds | 7.27 ounces | not stated | 0.44 kilograms | not stated |
| Size | D-RGB FLT 240 | not stated | 700 mL" | not stated | not stated | not stated | 200 ml |
| Model | 3831109819739 | 15362 | 13324 | 12946 | 3831109880777 | 13189 | PH-R220C_02 |
| Color | not stated | Argb | ARGB | Black | not stated | Clear | Black |
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Frequently asked questions
What is the largest reservoir capacity available in this list?
The Alphacool Eisball 700ml D5 Reservoir offers the largest capacity at 700 ml. This spherical unit is designed for builders who need significant coolant volume. It pairs with D5 pumps and includes digital RGB lighting. The acrylic construction provides a classic round look while maintaining durability for custom loop setups.
Which alternative is best for tight cases with flexible port options?
The EK WB Volume 3 FLT Reservoir is ideal for tight cases. It features a compact footprint with dimensions of 5.04 by 5.04 inches. This unit provides flexible connection options and straightforward RGB lighting. Its small size makes it suitable for builders prioritizing space efficiency and easy installation in constrained environments.
Do any options include a pump top for D5 pumps?
Yes, the Alphacool Eisball D5 Reservoir and Pump Top and the Alphacool Eisdecke D5 Plexi Pump Top both support D5 pumps. The Eisball combines a 700 ml tank with a pump top, while the Eisdecke serves as a clear acrylic mount. Both options integrate seamlessly with D5 pump assemblies for custom loops.
Is there a reservoir specifically designed for DDC pumps?
The Phanteks Glacier R220C Acrylic Reservoir is designed for DDC pumps. It holds 200 ml of coolant and features digital RGB lighting. The unit measures 8.66 by 3.15 inches and offers flexible mounting orientations. It suits builders who need a compact tank with synchronized lighting for their DDC-based custom loops.
Which product is the most compact CPU water block in the list?
The Alphacool Eisblock XPX Aurora CPU Water Block is the most compact option. It measures 2.98 by 2.98 inches with a height of 1.3 inches. This block delivers reliable cooling performance and sleek digital RGB lighting. Its small dimensions make it an ideal choice for users prioritizing aesthetics and compact setups.
What material are these reservoirs and blocks made from?
Most products in this list are constructed from acrylic or plexi. The EKWB EK-Quantum Volume FLT 240, Alphacool Eisball units, and Phanteks Glacier R220C all use acrylic. This material is chosen for its durability and clarity. It allows you to see the coolant flow while providing a sturdy structure for your custom loop.
Which option provides the best lighting for a standard 240mm setup?
The EKWB EK-Quantum Volume FLT 240 Acrylic Reservoir is best for standard 240mm setups. It features digital RGB lighting and offers a balanced mix of capacity and aesthetics. The unit weighs 2.16 pounds and fits compact forms. It is ideal for builders who prioritize acrylic durability and addressable RGB in their loop.