The Polyplumb is an integrated flexible plumbing system, incorporating polybutylene pipes and a complementary range of push-fit fittings. It can be used in domestic hot and cold water supply, and radiator and floor heating installations. This Polyplumb Equal Tee is a time efficient, no nonsense one step joint process that is suitable for domestic. The high performance stainless steel grab ring ensures superb joint integrity. Mad from Polybutylene and Stainless Steel.