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Six matte black knurled compression fittings for 13mm hard tube

Alphacool

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

SKU CH-BFBE-NHFF0 MPN 1012842

Six-pack of G1/4 compression fittings for 13mm hard tubes with knurled Deep Black finish

  • FeaturesThe Alphacool HT Compression fitting is a true masterpiece.
  • Secure leak-free seal with dual O-ring design
  • Fits 13mm hard metal tubes for custom loops
  • Standard G1/4 thread matches common components
  • Knurled union nut allows tool-free hand tightening
  • Deep black finish suits stealth-themed builds

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.

Highlights

  • Secure leak-free seal with dual O-ring design
  • Fits 13mm hard metal tubes for custom loops
  • Standard G1/4 thread matches common components
  • Knurled union nut allows tool-free hand tightening
  • Deep black finish suits stealth-themed builds

Specifications

BrandAlphacool
Model1012842
FeaturesThe Alphacool HT Compression fitting is a true masterpiece. These connectors promise absolute tightness and high quality.
Part Number1012842

Questions about this item

What outer-diameter hard tube is required for the 13 mm compression fitting to seal properly?

The fitting is designed for hard tubes with a 13 mm outer diameter, including Plexi or brass tubing.

Will the G ¼ thread on these fittings mate with the G ¼ ports on my existing water blocks and radiators?

Yes, each fitting uses a standard G ¼ thread, so it connects directly to any component with matching G ¼ ports.

How can I confirm the Deep Black knurled fittings are fully seated and leak-free after assembly?

Tighten the union nut with an 8 mm Allen key until the O-rings compress against the tube, then pressure-test the loop for leaks.

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