For 5/8 inch size od tubing with stuffing box. Neoprene seal disc, 3/4 inch size hose thread outlet, cast iron handle. Hose threads comply with ANSI B2.4. Boiler DrainCompression inlet x 3/4 Hose Outlet125 PSIRising stem for positive open and close operationSix-point cast-iron handleCompression end for solderless connection to copper tubingCompression end for solderless connection to copper tubing