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Brass G 1/4in male-female extension coupler, 20mm body, coated finish, knurled grip

PrimoChill

PrimoChill G 1/4in 20mm SX Extension Coupler

SKU CH-T8QS-6RMZE

A G 1/4in male-to-female extension coupler adds 20 mm of clearance between water-cooling fittings

  • Product typeCPU Block

Model UV Orange

Show 4 more
  • Male-to-female G 1/4in thread extends fittings for clearance
  • 20 mm body length adds reach without bulk
  • 25 mm overall height including threads fits tight loops
  • Coated brass construction resists corrosion in coolant
  • Pre-installed O-ring on male side seals on assembly

G 1/4in Extension Coupler

The PrimoChill SX extension coupler adds 20mm of thread height between any two G 1/4in fittings. It is designed for custom-loop builders who need extra clearance around CPU blocks, radiators or tight component spacing.

20mm Added Height

The coupler provides a male and a female G 1/4in thread, increasing overall stack height by 20mm without thread engagement and 25mm with threads engaged. This headroom resolves interference between adjacent fittings but does not replace a longer rotary adapter when greater offset is required.

Coated Brass Construction

The body is machined from coated brass with a pre-installed O-ring on the male side for a secure seal. Brass conducts heat well and resists corrosion in standard coolant loops, adding minimal thermal load and no moving parts that could generate noise.

How it compares

Measured against everything we stock in Heatsinks & Water Blocks, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 60% of the 609 comparable items (median $15.99).

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Specifications

Product
Product typeCPU Block

Other versions of this model

5 more in the same range

Questions about this item

Will this 20 mm extension coupler thread onto my existing G 1/4in fittings without adapters?

Yes, it has one male and one female G 1/4in thread so it connects directly to any standard G 1/4in fitting.

How can I confirm the 25 mm installed height is correct once the coupler is in my loop?

Measure from the female thread face to the male thread tip; it should read 25 mm when fully seated.

Does the box include the 20 mm coupler and the pre-installed O-ring on the male side only?

Yes, the package contains one 20 mm SX extension coupler with an O-ring already fitted to the male thread.

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