Push Fit Tee 1.cUPC,ACS ,NSF,PATENT approved 2,Export to USA & Canada Europen country 3,1/2" ... CE PATENT.Connects Copper,PEX and CPVC pipe in any combination.Certified to 200psi (13.8bar ) and 200°F (93 °C) Approved ... hot&Cold water Applications 7,Quality gurantee 50 years To Carola: carola @ zjlinbocopper.cn Push Fit Tee(cUPC ACS NSF CE pattent approved)