Barrow TLGYKN-14 G1/4 Hand-Tighten Twin-Seal Compression Fitting for OD14mm Rigid Tubing - Smooth Finish (Gold / Black / Silver)

Barrow TLGYKN-14 G1/4 Hand-Tighten Twin-Seal Compression Fitting for OD14mm Rigid Tubing - Smooth Finish (Gold / Black / Silver)

TL;DR: The TLGYKN-14 is a hand-tighten compression fitting for 14mm outside diameter rigid tubing in PETG, acrylic, or metal. The body is brass with a smooth knurl-free outer finish, sized so the collar can be cinched down without a wrench in a finished build where appearance matters. The seal is a...

Common Applications

The TLGYKN-14 is a hand-tighten compression fitting for 14mm outside diameter rigid tubing in PETG, acrylic, or metal. The body is brass with a smooth knurl-free outer finish, sized so the collar can be cinched down without a wrench in a finished build where appearance matters. The seal is a twin-O-ring design: one ring on the tube outer wall and one on the inner shoulder, which keeps the joint dry even when the tube is rotated to align bends. The thread is G1/4 and fits any standard water-block, fitting, or distribution port. As with all brass fittings, use only in copper, brass, and nickel loops with a coolant not formulated for aluminum systems. Gold, black, and silver finish options are available.

Frequently Asked Questions

Q: What tube and thread does this fitting accept?

A: 14mm outside diameter rigid tubing (PETG, acrylic, or metal) on the compression side and G1/4 thread on the port side.

Q: Is it hand-tighten only, or can I use a wrench?

A: It is designed to be tightened by hand and that is sufficient for a seal. A soft strap can be used for final snugging, but a metal wrench will mark the smooth finish.

Q: Does it fit aluminum radiators?

A: No. The fitting is brass, and mixing brass with aluminum coolant components causes galvanic corrosion. Use copper, brass, or nickel hardware only.

Q: How many fittings come in one unit?

A: Listings on this page are per fitting. Multi-packs (typically 4 or 6) are sold separately under SKU variants such as TR-TLGYKN-14-4P.

Q: What finish options exist?

A: Smooth Gold, Smooth Black (matte), and Smooth Silver.