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Black male quick-release coupling with G1/4 inner thread

Alphacool

Alphacool 17461 Eiszapfen Quick Coupling Male G1/4 Inner Thread Deep Black

SKU CH-P43N-QCWD3

Quick-release G1/4 internal-thread fitting with no-drip NDSL technology for leak-free water-cooling disconnection while the system runs

  • Product typeFittings
  • Leak-free disconnection with NDSL technology
  • G1/4 inner thread for flexible loop design
  • Combines with all Eiszapfen quick-release variants
  • Half-coupling design requires matching counterpart
  • High-flow performance without drips or splashes

Alphacool Eiszapfen Quick Coupling Male G1/4 Inner

This brass quick-release coupling is the male half of a G1/4" internal-thread connector pair designed for custom water-cooling loops. It uses Alphacool's NDSL technology to disconnect under pressure without dripping, splashing or leaking coolant. The deep-black finish matches dark-themed builds while the standard thread fits most radiators, blocks and reservoirs. Builders can combine it with any other Eiszapfen variant such as bulkhead or external-thread versions.

For loop builders who need tool-free.

Suits enthusiasts assembling or servicing custom liquid-cooling systems who want to drain or rearrange components without shutting down or spilling fluid. Not for users who lack the matching female quick-release half, because a single coupling cannot seal on its own. Also unsuitable for anyone using non-G1/4" thread standards or push-fit tubing without appropriate adapters.

Male G1/4" internal thread with NDSL no-drip sealing

The defining specification is the G1/4" female thread combined with Alphacool's NDSL quick-release mechanism, which allows instant, drip-free separation while the pump is running. This single attribute determines whether the fitting integrates with your existing components and delivers the maintenance convenience the series promises.

How it compares

Measured against everything we stock in Liquid Cooling & AIO Coolers, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 78% of the 1,190 comparable items (median $71.99).

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Specifications

Product
Product typeFittings

Questions about this item

Should I choose the male G1/4 inner-thread version or another variant of the Eiszapfen quick coupling?

Pick the male G1/4 inner-thread model when your component has a female G1/4 port; choose a bulkhead or external-thread variant if your mounting point or tubing layout requires those connections instead.

What does the NDSL no-drip claim mean when I disconnect this coupling while the loop is running?

NDSL technology seals both halves instantly on release, so you can uncouple under pressure without coolant dripping, splashing or leaking onto hardware.

How does the G1/4 thread standard limit flow or compatibility in a custom loop?

The G1/4 thread is the universal PC water-cooling standard, so it fits virtually every block, radiator and reservoir while the quick-release mechanism adds negligible flow restriction.

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