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Brass G 1/4 inch male-female extension coupler, 15mm body, coated finish

PrimoChill

PrimoChill Male to Female G 1/4in 15mm SX Extension Coupler diy cooling

SKU CH-6XWK-FGNCQ

A 15mm coated-brass G 1/4in male-to-female extension coupler adds clearance for custom-loop fittings

  • TypeCPU Block

Option UV Green

Show 9 more configurations

Struck-through versions exist but are not stocked here.

  • Adds 15 mm clearance with a 20 mm overall height
  • G 1/4 in male-to-female threads fit standard water-cooling loops
  • Coated brass construction resists corrosion in liquid-cooling systems
  • Pre-installed O-ring on male side ensures a leak-tight seal
  • Compact SX coupler solves tight-space fitting conflicts

Extension coupler for custom loops

The PrimoChill Male to Female G 1/4in 15mm SX Extension Coupler adds length to a water-cooling fitting so that tubing or blocks can clear nearby components. It is intended for DIY builders assembling a custom liquid-cooling circuit who need a short spacer between two G 1/4in ports. The coated brass body resists corrosion inside a sealed loop.

Thread and clearance check before ordering

Verify that both mating ports use G 1/4in threads; the coupler provides one male and one female end. Measure the available gap to confirm the 15mm body height plus the 20mm overall height with threads will fit without stressing adjacent fittings. Ensure the installed O-ring on the male side seats cleanly to prevent leaks.

Behaviour under sustained loop pressure

The coated brass construction maintains dimensional stability when the loop runs at typical operating temperatures and pressures for extended periods. The fixed O-ring seal does not rely on periodic retightening, so joint integrity remains consistent during continuous circulation. The coupler adds no moving parts, so flow resistance and acoustic signature stay constant over the life of the build.

Highlights

  • Adds 15 mm clearance with a 20 mm overall height
  • G 1/4 in male-to-female threads fit standard water-cooling loops
  • Coated brass construction resists corrosion in liquid-cooling systems
  • Pre-installed O-ring on male side ensures a leak-tight seal
  • Compact SX coupler solves tight-space fitting conflicts

Specifications

TypeCPU Block

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Questions about this item

What comes in the package and is an extra O-ring needed?

The box contains one 15 mm SX extension coupler with an O-ring already installed on the male G 1/4 in. thread. No additional seal is required.

Which height version should I pick for a tight clearance build?

The coupler adds 15 mm without threads or 20 mm including the threads, so choose based on the exact gap you need to bridge.

How much extra length does the coated brass coupler add to a G 1/4 in. loop?

It extends the connection by 15 mm (20 mm with threads engaged), giving the clearance needed for tight routing.

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