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Eight black brass compression fittings with diamond knurling for 16 mm hard tube

FormulaMod

FormulaMod Hard Tube Fitting 16 mm OD G1/4 8 Pack Black

SKU CH-AVZS-9VEA5

Eight H59 brass G1/4 compression fittings with diamond-textured grip for 16 mm OD rigid tubing

  • Product typeFittings
  • H59 brass construction resists corrosion
  • Diamond texture prevents slipping during installation
  • G1/4 thread fits standard water-cooling components
  • Designed for 16 mm outer-diameter rigid tubing
  • Eight fittings included for a complete loop

Fittings for 16 mm hard tube

These compression fittings connect rigid tubing with a 16 mm outer diameter to any component using a standard G1/4 thread. The eight-piece kit supplies enough connections for a typical custom loop. They are built from H59 brass for corrosion resistance and long service life.

Diamond texture for tool-free tightening

The knurled collar lets you secure the tubing by hand without marring the surface. Each fitting seals directly against the hard tube, so no separate clamps or inserts are required. This keeps the loop clean and reduces the number of potential leak points.

Brass construction handles sustained pressure

H59 brass maintains its seal under continuous pump pressure and temperature cycling. The material resists stress relaxation better than softer alloys, so joints stay tight during extended gaming or rendering sessions. Eight fittings provide spares for future loop changes.

How it compares

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

Price $24.99
Cheaper than about 73% of the 1,190 comparable items (median $71.99).

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Specifications

Product
Product typeFittings

Questions about this item

Will the G1/4 threads strip if I tighten the fittings repeatedly during loop maintenance?

The fittings are machined from H59 brass, which resists thread deformation better than softer alloys during repeated assembly.

Do the compression rings grip 16 mm hard tubing tightly enough to stay leak-free after hours of heat cycling?

The diamond-textured compression nuts increase friction on the tubing surface, helping maintain seal integrity through thermal expansion and contraction.

My radiator and water-block ports are all G1/4 — will these fittings thread directly without adapters?

Yes, each fitting has a standard G1/4 male thread that mates directly with any G1/4 female port on radiators, blocks or reservoirs.

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