Product Overview W1 BOLT-ON UNLOADER 1600PSI W/INJECTOR FEATURES: Unitrol Pressure Control Set bolt-on Reduces cost by eliminating the need for fittings and bypass hose Compact design features forged brass body and hardware Versatile, mounts in seconds to either side of pump manifold Trapped Pressure type adjustable unloader with internal bypass system Built-in chemical injector...includes variable metering adjustment SPECIFICATIONS: Flow range: 2 to 3 GPM Maximum Pressure: 1600 PSI Maximum temperature: 165 F Inlet Port: 3/8" FPT Outlet Port: 3/8" MPT Chemical Inlet: 1/4" Dimensions: 7.25" x 2.75" x 5.25" Weight: 2.5 lb Repair Kit: Kit 94, Barens order #3569 Use on the following pumps: TT551, TT561, TT741, TT751, TT901, TT931, T9051, TT9061, TT9071, TS1021. Warranty Information null Reviews (No reviews yet) Write a Review