Gagecock Body Material Bronze Compatible Gauge Glass Diameter 5/8 in Media Temperature - Maximum 500 Degrees F Drain Connection Size 3/8 in Handle Type Handwheel Handle Material Steel Drain Connection Type FNPT Operating Pressure - Maximum 500 psi Vessel Connection Size 1/2 in Vessel Connection Type MNPT Media Temperature - Minimum -20 Degrees F Overall Height 3 1/2 in Shut Off Style Ball Check Valve Standards ASTM 1 Pair