Shop Our Equipment › Adjustable Return-to-Reservoir Pressure Relief Kit 35-241 bar (500-3,500 psi) 6.35 mm NPT Image 1 of 1 Adjustable Return-to-Reservoir Pressure Relief Kit 35-241 bar (500-3,500 psi) 6.35 mm NPT $0.00 Quantity: Add To Cart Added! You Might Also Like Quick View GL-33 Grease Injector, Carbon Steel, 6 Injector Manifold, 1/8 in. BSPP x 6 mm Quick View Hydraulic Dyna-Star 10:1 High Ratio Lubrication Pump 27 kg (60 lb). Quick View GCI Series Red Output Spacer, .030 in3 (.49 cc) Quick View GL-32 Replacement Grease Injector, Carbon Steel, 3.2mm. Outlet Quick View GL-1 Grease Injectors 2 Injectors and Manifold