copper beer ball valves Specification: 3/8'', 1/2'', 3/4'', 1'', 1 1/4" , 1 1/ ... 2" , 2" , 3" , 4" CE, Rohs, ISO9001:2000 copper beer ... Gasket: PTFE (Teflon)Stem Sealing Ring: NBR 70 2. Size3/8'', 1/2'', 3/4'', 1'', 1 1/4" , 1 1 ... - 150 4. CertificationCE, ROHS, ISO9001:2000. 5. Guaranty3 Years Guaranty. copper beer ball valves