Barrow TFYKN-T12 G1/4 Brass Compression Fitting for 12mm OD Acrylic / PETG Hard Tube

Barrow TFYKN-T12 G1/4 Brass Compression Fitting for 12mm OD Acrylic / PETG Hard Tube

TL;DR: The TFYKN-T12 is a G1/4 compression fitting designed for 12mm OD rigid tubing in PC water-cooling loops. The body and collar are machined brass with an electroplated finish, and the bore carries dual O-rings that seal against the outer wall of the tube while a threaded compression collar locks the...

Common Applications

The TFYKN-T12 is a G1/4 compression fitting designed for 12mm OD rigid tubing in PC water-cooling loops. The body and collar are machined brass with an electroplated finish, and the bore carries dual O-rings that seal against the outer wall of the tube while a threaded compression collar locks the tube in place. The fitting installs hand-tight, and a second O-ring at the G1/4 thread seals against the host component without thread tape. It is intended for acrylic, PMMA or PETG hard tube only; soft tubing requires the matching barb-and-collar fittings.

Frequently Asked Questions

Q: What tube does it fit?

A: 12mm outer diameter rigid tubing: acrylic, PMMA or PETG. It will not seal correctly on 10mm OD, 14mm OD or 16mm OD tube, or on soft tubing.

Q: What thread does it use?

A: G1/4 BSPP, the standard PC water-cooling thread, with a built-in O-ring at the base for a tape-free seal.

Q: How is the tube secured inside the fitting?

A: The tube slides in past dual internal O-rings, then a threaded collar is screwed down by hand to clamp against the tube wall and lock it. No glue or adhesive is needed.

Q: Do I need to deburr the tube before fitting?

A: Yes. Cut the tube square, then chamfer the inside and outside edge so the O-rings are not nicked when the tube is inserted; a sharp burr is the most common cause of slow leaks.

Q: What finishes are available?

A: Common factory colors include black, silver, titanium gray, violet and white; verify the exact color on the listing before ordering.