Enerpac Lightweight Hydraulic Hand Pump, Single Speed 55 Cu In Reservoir Capacity btpcat_other_354309195 Maintaining system efficiency The low Maintaining system efficiency The low viscosity components of these oils have been chosen to help promote the smooth running of high speed machine elements and minimize heat build up through frictional energy losses FUELS AND ANTI FREEZE LIGHTWEIGHT AND COMPACT DESIGN DURABLE GLASS FILLED NYLON RESERVOIR AND NYLON ENCAPSULATED ALUMINUM PUMP BASE FOR MAXIMUM CORROSION RESISTANCE TWO SPEED OPERATION ON MOST MODELS REDUCES HANDLE STROKES BY AS MUCH AS 78% OVER SINGLE SPEED PUMPS LOWER HANDLE EFFORT TO MINIMIZE OPERATOR FATIGUE HANDLE LOCK AND LIGHTWEIGHT CONSTRUCTION FOR EASY CARRYING LARGE OIL CAPACITIES TO POWER A WIDE RANGE OF CYLINDERS OR TOOLS NON CONDUCTIVE FIBERGLASS HANDLE FOR OPERATOR SAFETY INTERNAL PRESSURE RELIEF VALVE FOR OVERLOAD PROTECTION