Designed from the ground up to be the best! The Husqvarna Blu-Lock® Swing Fittings have the highest burst pressure, highest flow rate, and fastest install speed. The textured pipe provides a solid grip even in wet conditions. The 1/2″ Blu-Lock® fittings cut installation time in half! From the valves to the head, nothing installs faster or holds better than Blu-lock®.