Duotite fitting to attach a compatible 8mm (5/16" OD) EVABarrier tubing run to a regulator or manifold. This Duotight fitting with 1/4" male thread is a great option for connecting gas line to regulators and manifolds that have 1/4" FPT. Just screw the threaded end to your regulator or manifold, push in the tubing and the connection is done. Need to remove, just lift the locking ring to un-connect them. Duotight fittings offer a modern and reliable solution for establishing quick connections. With their push-in design, you can easily connect and disconnect draft lines without the need for tubing cutting or hose clamps. Tubing can be released by simply pushing in the collet and pulling the line out. No need for clamps or cutting lines! These versatile fittings are pressure rated up to 100 psi, making them suitable for various applications, such as serving as tailpieces on shanks and keg couplers, replacing swivel nuts and barbs on disconnects, or adding shut-off or check valves to draft lines. Food-grade acetal plastic, do not use chlorinated cleansers they will degrade the fitting.