Overview Reviews Product Description HM UNLOADER, 10.8GPM, 3000PSI FEATURES: Ideal for use in systems which incorporate a gasoline engine Eliminates back pressure in system when pulling a manual start engine Features brass and stainless steel construction, and a plastic adjustable pressure control knob SPECIFICATIONS: Built in easy start valve Must be mounted in vertical position. Optional spring must be used if mounted in any other position 10.8 maximum volume 3000 PSI maximum discharge pressure 165 F. maximum Inlet: 3/8" FPT Outlet: 1/4" FPT and 3/8" MPT Bypass: Dual 3/8" FPT Dimensions: 2.75" x 3.75" x 6.50" Weight: 2.5 lb Product Videos Custom Field Product Reviews Write a Review Write a Review × GP HM UNLOADER, 10.8GPM, 3000PSI Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *