Blu-lock by Hydro-Rain is a new alternative to your traditional PVC sprinkler system. Blu-Locks "Push and Go" system gives you a 100% tool and glue free approach which cuts installation time in half. Blu-Lock is manufactured from recycable HDPE and environmentally friendly. Available in 1/2" - 1" Blu-Lock promises to add convenience and versatility to your next sprinkler irrigation job.