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Alphacool G1/4 compression fitting in deep black finish

Alphacool

Alphacool G1/4 Compression Fitting Deep Black 3/8"ID 1/2"OD 17078

SKU CH-K912-F89FX

G1/4 compression fitting with 3/8″ ID and 1/2″ OD for high-flow custom loops, finished in durable Deep Black chromatised brass

  • TypeFittings
  • High-flow inner diameter maximises coolant throughput
  • Deep Black chromatised finish resists peeling permanently
  • G1/4 thread fits standard water-cooling components
  • Brass body ensures structural rigidity and corrosion resistance
  • Compatible with Alphacool tubing for unified aesthetics

Compression Fitting for Custom Loops

This G1/4 compression fitting connects 3/8 inch inner diameter tubing to 1/2 inch outer diameter tubing in a custom liquid-cooling loop. The Deep Black finish uses a chromatised surface bonded to the brass body for durable colour. It is suited for builders assembling a high-flow loop with matching Alphacool components.

Thermals Noise and Power

As a passive brass fitting it adds no active heat, noise or power draw to the system. The high-flow internal diameter minimises restriction so pump workload remains low. Correct installation with the supplied compression rings ensures a leak-free seal under normal operating pressure.

17078 Deep Black G1/4 3/8 ID 1/2 OD

The single specification that decides fitment is the 17078 model with G1/4 thread, 3/8 inch inner diameter and 1/2 inch outer diameter. Builders using tubing with different dimensions or a different thread standard cannot use this fitting. It is not for loops requiring angled, rotary or quick-disconnect connectors.

Highlights

  • High-flow inner diameter maximises coolant throughput
  • Deep Black chromatised finish resists peeling permanently
  • G1/4 thread fits standard water-cooling components
  • Brass body ensures structural rigidity and corrosion resistance
  • Compatible with Alphacool tubing for unified aesthetics

Specifications

TypeFittings

Questions about this item

How do I install the Alphacool G1/4 compression fitting 17078 onto 3/8" ID tubing, and what step is often missed?

Slide the compression ring over the tubing, push the tubing fully onto the barb until it seats against the body, then tighten the collar by hand plus a quarter turn with a wrench; the step often missed is verifying the tubing sits flush against the internal shoulder before tightening.

What maintenance or replacement will the Deep Black finish on fitting 17078 need over time?

The chromatised surface is bonded to the brass body to prevent peeling, so no recoating is required; periodic visual inspection for corrosion or seal degradation is sufficient, and only the O-rings may need replacement if they harden.

What limit appears first on fitting 17078 during sustained high-flow liquid cooling use?

The practical limit is the tubing's temperature and pressure rating, as the fitting's high-flow bore and brass construction exceed typical soft-tubing specifications.

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