Double Relief Valve, Pressure - Maximum 3,000 psi, Flow Rate - Maximum 30 gpm, Body Material Cast Iron, Pressure - Minimum 1,500 psi, Adjustment Method Allen Wrench, Port Connection Type NPT, Port Connections Manifold, Fluid Viscosity - Maximum Not Applicable, Port Connection Gender Female, Flow Rate - Minimum 1 gpm, Pressure Setting - Maximum 2,000 psi, Overall Width 7 in, Port Connection Size 3/4 in, Operating Temperature - Maximum 180 Degrees F, Overall Height 2 in, Overall Length 4.5 in