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
Chrome-finished brass G1/4 male-to-male revolvable extension fitting

Alphacool

Alphacool 64221 G1/4 Male to Male Revolvable Extension Chrome

SKU CH-AQMJ-XNXEN MPN 64221

A chrome-plated revolvable extension joins two G1/4 female-threaded components while allowing angular adjustment

  • FeaturesA double nipple with two 1/4“ outer threads is very useful f
  • Revolvable design enables flexible routing in tight spaces
  • High-flow inner diameter maintains coolant velocity through the extension
  • Chrome chromatised finish bonds to brass for lasting colour
  • G1/4 male-to-male threads join two female-threaded components directly
  • Single-piece brass construction ensures leak-free sealing under pressure

Revolvable G1/4 Extension Fitting

The Alphacool 64221 is a chrome-plated brass adapter with dual G1/4 male threads designed to extend or connect water-cooling components that have female ports. Its revolvable centre section allows the two ends to rotate independently so tubing runs can be aligned without stressing rigid or soft tubes. The fitting suits custom-loop builders who need a straight spacer between blocks, radiators, reservoirs or distribution plates.

High-Flow Internal Bore

The internal diameter is machined to a high-flow profile that minimises restriction even when several extensions are chained together in a single loop. Because the joint rotates freely the coolant path stays smooth under sustained pump pressure and there is no kinking risk that would throttle flow during long gaming or rendering sessions. The chrome surface is bonded to the brass body through a chromatising process that resists peeling and maintains thermal performance over time.

Chrome Brass Construction

Solid brass construction with a durable chrome finish provides mechanical strength for repeated assembly and disassembly without thread damage. The revolvable mechanism uses an internal O-ring seal that remains leak-tight while the halves spin, so the fitting can be oriented after final torque without re-tightening. Supplied as a single unit under part number 64221 it integrates with any standard G1/4 water-cooling ecosystem.

Highlights

  • Revolvable design enables flexible routing in tight spaces
  • High-flow inner diameter maintains coolant velocity through the extension
  • Chrome chromatised finish bonds to brass for lasting colour
  • G1/4 male-to-male threads join two female-threaded components directly
  • Single-piece brass construction ensures leak-free sealing under pressure

Specifications

BrandAlphacool
Model64221
FeaturesA double nipple with two 1/4“ outer threads is very useful for the extension of fittings or connection of components with an inner thread to a manifold or similar components with an inner thread.
Part Number64221

Questions about this item

Does the chrome finish on this G1/4 revolvable extension withstand continuous coolant flow and heat without peeling?

The chromatising process bonds the chrome layer directly to the brass body, so the finish remains intact under constant liquid cooling temperatures and flow.

Which thread type must my existing fittings or components have to connect with this male-to-male extension?

Both ends use G1/4 outer threads, so the parts you are joining must each provide a G1/4 inner thread.

Will the revolvable joint on this Alphacool 64221 extension align cleanly with rigid tubing runs in an older loop?

The revolvable design lets you rotate the extension independently after threading, making it easier to line up with fixed rigid tubing or legacy components.

Also in this aisle

People compared these

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