Bykski
Bykski G 1/4in Male/Female Extension Coupler 20mm
A 20 mm brass extension coupler with G 1/4 in threads adds clearance between fittings in a non-aluminium liquid-cooling loop
- TypeCPU Block
- ColorGray
- Extends G 1/4in fittings by 20mm for clearance
- Diamond knurled brass body enables secure hand tightening
- Male-to-female design connects directly to existing water-block ports
- Brass construction resists corrosion in non-aluminium custom loops
- 25mm total height fits tight spacing between components
Brass G 1/4in Extension for Custom Loops
This 20 mm brass coupler adds reach between any G 1/4in fittings in a custom water-cooling loop. Diamond knurling gives a secure hand grip when tightening or repositioning components. It suits builders who need a short spacer to clear tight routing paths. The part is sold new and intended for non-aluminum loops only.
Replacing Longer Rigid Spacers
Swap a fixed-length rigid extender for this coupler when only a small gap must be bridged. The 20 mm body plus thread keeps the assembly compact while still providing the needed offset. The jump is worth it when a longer spacer would force awkward bends or interfere with adjacent blocks. Avoid if the coolant is DI water based or a PrimoChill Opaque or VUE series fluid.
Fitting Into a Brass Fitting Chain
Thread the male end into a block or radiator port and the female end accepts the next G 1/4in fitting in the chain. The 25 mm overall height with thread fits most port depths without bottoming out. Brass construction matches common nickel-plated brass fittings for galvanic compatibility. It frees up routing options without adding bulky adapters.
Highlights
- Extends G 1/4in fittings by 20mm for clearance
- Diamond knurled brass body enables secure hand tightening
- Male-to-female design connects directly to existing water-block ports
- Brass construction resists corrosion in non-aluminium custom loops
- 25mm total height fits tight spacing between components
Specifications
| Type | CPU Block |
|---|---|
| Color | Gray |
Questions about this item
Will the 20 mm coupler clear a tight GPU block cutout?
The coupler body is 20 mm tall without threads and 25 mm including the G 1/4 in. male and female threads, so measure the gap before ordering.
Do I need thread sealant on the brass G 1/4 in. threads?
Hand-tighten the diamond-knurled brass coupler until the O-ring seats; over-tightening with tools can strip the fine threads.
Can I run Mayhems X1 or other opaque coolant through this brass extension?
The manufacturer warns the internal finish is not compatible with PrimoChill Opaque or VUE series and may react with DI water coolants.
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