H-9979N Previouse Next H-9979N Specifications: Ground Key Corporation Valve Inlet: AWWA I.P. thread Outlet: Increasing I.P. thread (outlet is one size larger than inlet) Sizes: 1/2" (3/4" outlet), 5/8" (3/4" outlet), 3/4", 1", 1-1/2", 2" Resources: Certification of Compliance