We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
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

  • TypeCPU Block

Option UV Orange

Show 9 more configurations

Struck-through versions exist but are not stocked here.

  • 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.

Highlights

  • 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

Specifications

TypeCPU Block

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

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.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.