Vetplast Insert Coupling 40 Mm Is Made From Durable Polypropylene And Designed For Use With Class 3 And 6 Low Density Polyethylene Pipes. This Coupling Offers A Large Surface Area For Effective Clamping Ensuring A Strong And Secure Connection. The Large Barb Design Prevents The Pipe From Slipping Or Blowing Off Under Pressure Offering Reliable Performance In Various Irrigation And Applications. Ideal For Connecting Polyethylene Pipes In Agricultural And Industrial Systems The Insert Coupling Provides A Leak Proof And Long Lasting Solution. Its Robust Construction Ensures Optimal Flow And Functionality For A Wide Range Of Installations.