Working in a sprinkler trench is tough enough-don't make it harder by using traditional pipe fitting methods that require hot, toxic glue, clamps or frustrating barbed fittings. Hydro-Rain offers a better way: Blu-Lock. Everything you do from the valve out, you can now do faster and easier with Blu-Lock. Primer? Glue? Clamps? Tools? With the Blue-Lock system, you don't need them! Simply stated, Blu-Lock by Hydro-Rain is the fastest, greenest, irrigation installation method in the world. Blu-Lock is for non-constant pressure, valve-out, cold water, outdoor direct burial irrigation connections only. Every fitting installed from the valve out, you can now install faster and easier with Blu-Lock fittings. Simply stated, Blu-Lock by Hydro-Rain is the fastest, greenest, irrigation installation method in the world. Built for Speed Advantages Patent Pending "Push-and-Go" Design - 100% tool and chemical free approach that cuts installation time in half or more. Blu-Lock Pipe is Green Environmentally Friendly recyclable HDPE pipe provides a superior alternative to PVC. Blu-Lock Fittings are Green Outside diameter (OD) technology ensure lower friction loss for better efficiency. Both are Chemical Free Glueless, tool-free installation protects the environment and the long-term health of your crew. Heavy-Duty Construction Built tough fittings made from UV-resistant ABS, stainless steel and EPDM seals are designed and tested to ensure toughness. Patented Retaining System Stainless steel teeth grip pipe tight for a strong, leak-proof connection. Outside Diameter (OD) Technology Flow is unimpeded for 25 percent increase in flow versus traditional insert fittings. High Quality and "Easy-Flex" Blu-Lock lateral and swing pipe are made from virgin resins and meet ASTM standards. Hydro-Rain Warranty 3-year limited warranty on fittings.