Description
TL;DR: The THKN-1/2-V4 is a G1/4 compression fitting for 13x19mm soft tubing, the larger 1/2 inch ID by 3/4 inch OD bore size used in high-flow PC water cooling loops. The body is H59 brass with a plated finish and a rubber o-ring on the G1/4 male thread, giving a leak-tight seal against any standard...
The THKN-1/2-V4 is a G1/4 compression fitting for 13x19mm soft tubing, the larger 1/2 inch ID by 3/4 inch OD bore size used in high-flow PC water cooling loops. The body is H59 brass with a plated finish and a rubber o-ring on the G1/4 male thread, giving a leak-tight seal against any standard water cooling port. A textured outer collar and an anti-slip inner ring grip the tubing so the joint will not creep under pump pressure. The V4 revision is the current generation of Barrow's 1/2 by 3/4 fitting and is sold in black, silver, white and gold finishes.
Q: What tubing does this fitting need?
A: 13x19mm soft tubing, which is 1/2 inch ID and 3/4 inch OD.
Q: Is it compatible with 3/8 tubing?
A: No. Use the THKN-3/8 (10x13mm) or FBHKN-3/8 series for 3/8 inch ID tubing; the compression ring on this part is sized for 3/4 OD only.
Q: What thread does it use?
A: G1/4, the universal PC water cooling thread.
Q: What is the body material?
A: H59 brass with a plated outer finish.
Q: How many fittings does a loop need?
A: Two per tube run, one at each end; a typical CPU plus GPU plus radiator plus reservoir loop uses eight to twelve fittings total.