Bykski B-HTJV2-L12 12mm OD Rigid Fitting V2 diy cooling

12 mm Rigid-Tube Fitting V2

The Bykski B-HTJV2-L12 is a compression fitting designed for custom water-cooling loops. It accepts rigid tubing with a 12 mm outside diameter made from PETG, acrylic or metal. A standard G 1/4 thread connects the fitting to blocks, radiators or reservoirs. The black finish suits monochrome builds.

Builders using 12 mm hard tube in non-aluminium

This fitting suits builders assembling a custom loop with 12 mm OD rigid tubing and standard G 1/4 ports. It is not for systems that use aluminium radiators or components, because the loop must be non-aluminium. It also does not fit soft tubing or tubing with a different outside diameter.

Single-fitting capacity for one tube connection

Each unit provides one secure connection point for a single length of 12 mm rigid tube. A typical loop requires multiple fittings — two per component — so one fitting alone cannot complete a circuit. Plan the total quantity around the number of components and routing bends in your build.