Slip Coupling 1.cUPC,ACS ,NSF,PATENT approved 2,Market: USA & Canada Europen country ... " 1/2" 3/4" 1" Certified to cUPC NSF ACS CE PATENT.Connects Copper,PEX and CPVC pipe in any ... Simple Install & Operation,(push connect by hands) c, Flexible&Lightweight d, For use with hot&Cold water Applications 7,Quality gurantee ... 50 years Email: carola @ zjlinbocopper.cn Slip Coupling(cUPC,ACS ,NSF PATENT approved)