With its powerful push-lock technology, your job will be done in record time! Cut, repair or install HDPE pipe in record time. Blu-lock 1″ fittings are compatible with all SIDR 15 and 19 HDPE pipes. 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 1″ Blu-Lock fittings cut installation time in half! From the valves to the head, nothing installs faster or holds better than Blu-lock.