Alphacool 1012842 13mm HardTube Compression Fitting G1/4 Knurled Deep Black Six Pack

Alphacool 13 mm Hard-Tube Fitting Six Pack

This set contains six G1/4 compression fittings designed for 13 mm outer-diameter hard tubes such as acrylic or brass. The knurled Deep Black finish allows hand-tightening or adjustment with an 8 mm Allen key. Each fitting uses a dual O-ring seal and a protective plastic disc to maintain a secure, leak-free connection. The pack suits custom liquid-cooling loops that require a uniform, professional appearance.

Builders using 13 mm rigid tubing

These fittings are intended for 13 mm hard tubes only; systems built around softer flexible hose or different rigid diameters will need alternative connectors. Installers who prefer tool-free push-fit couplings or quick-disconnect sockets should look elsewhere. The Deep Black coating also means the parts will not match chrome, silver or coloured hardware themes.

G1/4 thread with 13 mm compression bore

The defining specification is the G1/4 thread combined with a 13 mm compression bore, which decides whether the fitting matches your tubing and component ports. No other size or thread variant is included in this pack.