
Best Koolance products in the Water cooling connections category
On this page you'll find a ranking of the best Koolance products in this category. To give you a quick overview, we've already ranked the most important information about the products for you.
1. Koolance Quick release 19/13mm coupling High-Flow
With these new quick disconnects, Koolance has achieved a new masterpiece.
The latest generation has been specifically designed for high flow systems. It features the same outstanding quality in craftsmanship and functionality that Koolance is known for. A new feature is the O-ring, which is not placed snugly against the plug in the coupling but is instead seated in a groove on the front side of the plug. The advantage of this design is that the amount of water released when disconnecting the fittings is very minimal. Additionally, misalignment is no longer possible, and the lifespan of the O-ring is significantly longer than that of its predecessors. The connection is simply and effectively secured by a spring-loaded metal ring that is pulled back to separate the connection.
Technical details:
Material: black powder-coated brass
QD3: female
Hose size: 19/13mm
Overall length: 50.3mm
Max. diameter: 25mm
Delivery includes:
1x Koolance quick disconnect 19/13mm (ID 1/2" OD 3/4") coupling (High Flow) - QD3 Black.

2. Koolance ANK QD3 Schnellverschluss gerade m??nnlich auf 16/10mm - schwarz
Koolance QD3 Quick Disconnect Straight Male to 16/10mm - Black
Koolance is known among enthusiasts for its outstanding quality and top-notch design. Koolance offers a wide range of water cooling components – from heat sinks to radiators and pumps, as well as high-quality fittings and hoses. A special highlight is the QD series of quick disconnects, which provide maximum flexibility and convenience when separating and connecting the cooling circuit. With just one hand movement – by simply pressing down a metal ring – the connection is released without the need to drain the entire system. This makes them ideal for frequently changing components or for the easy transport of external radiators.
Why choose Koolance Quick Disconnects?
- Quick separation and connection without tools
- Minimal leakage thanks to No-Spill technology (max. 0.2 ml fluid exit)
- Perfect for modular water cooling – ideal for enthusiasts and overclockers
- High-quality materials – black-coated brass for durability
The Koolance QD3 series consists of a male and female connector that securely connect to each other. This model is the black straight male version with a 16/10mm hose connection, suitable for most water cooling systems with a 16/10mm hose. The hose is attached and secured to this Koolance QD3 quick disconnect using a compression fitting. Maximum compatibility – easy handling – professional quality. Perfect for anyone who wants to keep their water cooling flexible!.

Koolance ANK QD3 Schnellverschluss gerade m??nnlich auf 16/10mm - schwarz
3. Koolance Compression Fitting for Copper Tubes, OD 06 mm to G 1/4 inch BSPP- silver
The compression fitting for copper tubes allows you to adapt copper tubes with an OD of 6 mm to a standard G1/4-inch connection. This makes installation very easy, and you can effortlessly realize your dream build with copper tubes.
Technical details:
- Color: Silver
- Material: Brass, EPDM
- Connection: G1/4 inch BSPP to OD 6 mm (1/4 inch)
- Maximum pressure: 19.61 bar.

Koolance Compression Fitting for Copper Tubes, OD 06 mm to G 1/4 inch BSPP- silver
4. Koolance QD3 No-Spill 19/13 mm black (QD3-FS13X19-BK)
Koolance is a guarantee of excellent quality and aesthetics among enthusiasts, offering a wide range of products in the field of water cooling, from heat sinks to fittings, radiators, pumps, and hoses. The manufacturer knows exactly what it offers to its demanding customers.
The QD series of quick disconnects from Koolance allows for a very simple and practical way to interrupt the coolant circuit by simply pressing down on a metal ring. This is particularly necessary in situations where hoses or water cooling components connected to the rest of the cooling system need to be frequently disconnected.
For example, consider an external radiator that you want to quickly and securely detach from your PC during transport to carry it separately. Or a water cooling component that you change frequently, whether out of experimentation (CPU or chipset cooler) or for regular upgrades (VGA cooler).
Two QD3 quick disconnects made of black-painted brass are connected or separated (one male, one female), with Koolance developing valves that, as the name No-Spill suggests, are designed to ensure a certain degree of leak resistance. However, it should be noted that a hundred percent immediate sealing is not possible, and up to 0.2 ml of fluid may escape.
This quick disconnect features a black straight female version with a hose connection via a compression fitting, with an inner diameter of 13 mm and an outer diameter of 19 mm.
Technical details:
- Material: Brass, black
- Maximum operating pressure: 28.5 psi
- Connections:
- QD3: female
- Hose: 13 mm (inner diameter).

5. Koolance QD2 No-Spill Quick Release Straight Female, G1/4 in.
The QD series of quick disconnects from Koolance allows for a very simple and practical way to interrupt the coolant circuit by simply pressing down on a metal ring. This is especially necessary in situations where hoses or water cooling components connected to the rest of the cooling system need to be frequently disconnected. For example, consider an external radiator that you want to quickly and securely detach from the PC during transport to carry it separately. Or think of a water cooling component that is frequently changed, whether out of experimentation (CPU or chipset coolers) or due to regular upgrades (VGA coolers).
Two QD2 quick disconnects made of nickel-plated brass are connected or separated (one male, one female), with Koolance having developed valves that, as the name No-Spill suggests, are intended to ensure a certain degree of leak resistance. However, it should be noted that a hundred percent immediate sealing is not possible, and up to 0.2 ml of liquid may escape.
This variant in the new revision features a straight female version with a G1/4-inch external thread.
Technical details:
- Material: Brass, nickel-plated
- Maximum operating pressure: 28.5 psi
- Connections: QD2: male, connection: external thread ¼ inch.

6. Koolance ANK QD3 Schnellverschluss gerade weiblich auf 13/10mm - schwarz
Koolance QD3 Quick Disconnect Straight Female 13/10mm - Black
Koolance is known among enthusiasts for outstanding quality and top-notch design. Koolance offers a wide range of water cooling components – from heat sinks to radiators and pumps, as well as high-quality fittings and hoses. A special highlight is the QD series of quick disconnects, which provide maximum flexibility and convenience when disconnecting and connecting the cooling circuit. With just a single motion – by simply pressing down a metal ring – the connection is released without needing to drain the entire system. This makes them ideal for frequently changing components or for the easy transport of external radiators.
Why Koolance Quick Disconnects?
- Fast disconnection and connection without tools
- Minimal leakage thanks to No-Spill technology (max. 0.2 ml fluid exit)
- Perfect for modular water cooling – ideal for enthusiasts and overclockers
- High-quality materials – black-painted brass for durability
The Koolance QD3 series consists of male and female connectors that securely connect with each other. This model is the black straight female version with a 13/10mm hose connection, suitable for most water cooling systems with a 13/10mm hose. The hose is attached and secured to this Koolance QD3 quick disconnect using a compression fitting. Maximum compatibility – easy handling – professional quality. Perfect for anyone looking to keep their water cooling flexible!.

Koolance ANK QD3 Schnellverschluss gerade weiblich auf 13/10mm - schwarz
7. Koolance Quick release
Koolance is a guarantee of excellent quality and aesthetics among enthusiasts, offering a wide range of products in the field of water cooling, including heat sinks, fittings, radiators, pumps, and hoses. The manufacturer knows exactly what to offer its discerning customers.
The QD series of quick disconnects from Koolance allows for a very simple and practical way to interrupt the coolant circuit by simply pressing down on a metal ring. This is especially necessary in situations where hoses or water cooling components need to be frequently disconnected from the rest of the cooling system.
For example, consider an external radiator that you want to quickly and securely detach from your PC during transport to carry it separately. Or a water cooling component that you change often, whether out of curiosity (CPU or chipset cooler) or for regular upgrades (VGA cooler).
Two QD3 quick disconnects made of black-painted brass are connected or separated (one male, one female), with Koolance developing valves that, as the name No-Spill suggests, are designed to ensure a certain degree of leak resistance. However, it should be noted that a hundred percent immediate sealing is not possible, and up to 0.2 ml of liquid may escape.
This quick disconnect features a black straight female version with a hose connection via a compression fitting, with an inner diameter of 10 mm and an outer diameter of 13 mm.
Technical details:
- Material: Brass, black
- Maximum operating pressure: 28.5 psi
- Connections:
- QD3: female
- Hose: 10 mm (inner diameter).

8. Koolance HF quick release straight male to 16/13mm - no-spill
Koolance offers a wide range of water cooling products, including heatsinks, fittings, radiators, pumps, and hoses. The manufacturer knows exactly what to provide for its demanding customers.
The practical VL3N quick disconnects from Koolance allow you to interrupt the coolant circuit with a simple hand motion (quarter turn). This is especially necessary in situations where hoses or water cooling components connected to them need to be frequently detached from the rest of the cooling system.
For example, consider an external radiator that you want to quickly and securely disconnect from your PC during transport to carry it separately. Or a water cooling component that you change often, whether out of curiosity (CPU or chipset coolers) or for regular upgrades (VGA coolers).
Two VL3N quick disconnects made of nickel-plated brass are connected or separated (one male, one female), with Koolance designing valves that ensure maximum leak-free operation. However, it should be noted that a hundred percent immediate sealing is not possible, and up to 0.2 ml of liquid may escape.
This high-flow quick disconnect features a straight male design with a hose connection via a nut, with an inner diameter of 13 millimeters and an outer diameter of 16 millimeters.
Technical details:
- Size: 49.7 x 23.0 mm (length x diameter)
- Material: Brass, nickel-plated
- Connections:
- VL3N: male
- Hose: 16/13 mm.

9. Koolance Screw-on sleeve
High quality and robust screw-on grommet with cylindrical thread (1/4 inch). The hose is screwed tightly with the cap nut, then seals immediately, but can even be loosened with one hand. This system guarantees maximum safety and foolproof assembly With integrated ¼ inch Perbunan sealing ring. Material: brass Scope of delivery: screw-on grommet with sealing ring and cap nut Dimensions: Length: 2.45cm Diameter: 1.82cm Thread length: 5mm Aquainfos has tested this product for you .

10. Koolance ANK QD3 Schnellverschluss gerade m??nnlich auf 13/10mm - silber
Koolance QD3 Quick Disconnect Straight Male to 13/10mm - Black. Koolance is known among enthusiasts for outstanding quality and top-notch design. Koolance offers a wide range of water cooling components – from heat sinks to radiators and pumps, as well as high-quality fittings and hoses. A special highlight is the QD series of quick disconnects, which provide maximum flexibility and convenience when disconnecting and connecting the cooling loop. With just one hand movement – by simply pressing down a metal ring – the connection is released without the need to drain the entire system. This makes them ideal for frequently changing components or for the easy transport of external radiators.
Why choose Koolance quick disconnects?
- Fast disconnection and connection without tools
- Minimal leakage thanks to No-Spill technology (max. 0.2 ml fluid exit)
- Perfect for modular water cooling – ideal for enthusiasts and overclockers
- High-quality materials – black-coated brass for durability
The Koolance QD3 series consists of a male and female connector that securely connect to each other. This model is the black straight male version with a 13/10mm hose connection, suitable for most water cooling systems with a 13/10mm hose. The hose is attached and secured to this Koolance QD3 quick disconnect using a compression fitting. Maximum compatibility – easy handling – professional quality. Perfect for anyone looking to keep their water cooling flexible!.

Koolance ANK QD3 Schnellverschluss gerade m??nnlich auf 13/10mm - silber