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Brass G 1/4in male-female extension coupler, 25mm body, coated finish

PrimoChill

PrimoChill Male to Female G 1/4in 25mm SX Extension Coupler diy cooling

SKU CH-3F3D-W7D4K

A coated-brass G 1/4 in extender adds 25 mm clearance between male and female threads

  • TypeCPU Block

Option UV Green

Show 9 more configurations

Struck-through versions exist but are not stocked here.

  • Extend fitting clearance with 25 mm male-to-female G 1/4 in coupler
  • Coated brass body resists corrosion for long-lasting loop reliability
  • 30 mm overall height including threads fits tight build spaces
  • Pre-installed O-ring on male side ensures leak-free seal
  • Trusted US brand with 20 years of water-cooling expertise

Clearance Extension Coupler

This PrimoChill Male to Female G 1/4in coupler adds 25mm of reach between fittings so builders can route tubing around tight component layouts. The coated brass body threads directly into any standard G 1/4in port without adapters. An installed O-ring on the male side seals the joint before the loop is filled. It suits custom-loop builders who need a little extra spacing in a crowded chassis.

Sustained Loop Integrity

Under continuous coolant pressure the brass construction resists deformation and the single O-ring maintains a steady seal throughout long gaming or rendering sessions. No additional sealing compound is required because the factory-fitted ring seats against the female port on tightening. The fixed 30mm overall height keeps the assembly predictable when planning tube runs. The coupler does not restrict flow because its internal bore matches the G 1/4in thread standard.

Thermal Neutral Component

The coupler adds no active cooling surface so it contributes negligible heat to the loop and draws zero power. Coated brass resists corrosion from common coolants, keeping fluid chemistry stable over months of operation. With no moving parts it produces no audible noise under any load condition. Builders should verify clearance allowances in their case before ordering because the fixed length cannot be adjusted after installation.

Highlights

  • Extend fitting clearance with 25 mm male-to-female G 1/4 in coupler
  • Coated brass body resists corrosion for long-lasting loop reliability
  • 30 mm overall height including threads fits tight build spaces
  • Pre-installed O-ring on male side ensures leak-free seal
  • Trusted US brand with 20 years of water-cooling expertise

Specifications

TypeCPU Block

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Questions about this item

Does the 25mm extension coupler add noticeable heat or restrict flow in a loop running all day?

The coated brass coupler is a passive fitting with no moving parts, so it adds negligible thermal load and does not impede coolant flow during continuous operation.

What existing fittings or components do I need to already have for this G 1/4in male-to-female coupler to work?

You need at least one component with a standard G 1/4in female thread and another with a G 1/4in male thread to connect the coupler between them.

Will the 30mm overall height of this coupler interfere with older water blocks or radiators that have tight port spacing?

The 30mm height includes threads; in tight layouts the extra length can crowd adjacent ports, so measure clearance against your existing blocks and radiators before installing.

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