65GP Series couplings offer 1/2” flow capacity and are manufactured from a high performance glass filled polypropylene. 65GP couplings have a full flow, non-valved, smooth internal bore that allows for maximum flow with minimal turbulence. 65GP couplings are extremely durable and are well suited for applications that require chemical resistance. 65GP Series couplings interconnect with and are compatible with many other plastic latch type couplings.