This Diaphragm Hand Pump is great for use with clean or dirty fluids, including diesel, water or oils up to SAE 90. The pump is capable of transferring contaminated or dirty liquids containing solids up to 10mm in size. Our diaphragm hand pump comes with the option of 1" or 1½" hose tails (both come with it) and can therefore achieve two different maximum flow rates. Should you fit with 1" hose, it can pump up to 47L/min or should you fit 1½" hose, 68L/min is the maximum flow rate. Made from glass filled polypropylene, with nitrile seals and screw holes for mounting, this diaphragm hand pump is ideal for pumping from generator sets.