Mueller 164-138 PVC Schedule 80 Threaded UnionMueller 164-138 PVC Schedule 80 Threaded Union Features:;Heavy-duty white Schedule 80 PVC construction;Neoprene "O" rings;Can be used with both Schedule 40 or 80 pipe;Threaded ends comply with ANSI B1.20.1;Solvent ends comply with ASTM D2466;Rated at 150 PSI at 73 º F;Maximum temperature 150 ° F;EPDM O-ring seal;FIP x FIP;164-133: 1/2";* Image shown may vary by color, finish, or material