This Action Pump 7008 hand-operated piston drum pump is made of PVC (polyvinyl chloride) for resistance to acids and alkalis, delivers 10 oz. of fluid per stroke, and is suitable for dispensing detergents, most acids, chlorines, oils, D-limonene, waxes, alkalis, water, or soaps. It has a 1-1/2" inlet port with a 5-1/2" suction tube, and a 1/2" outlet port with a 22" polyethylene discharge tube that resists abrasion and corrosion. This pump can deliver a maximum of 4 gallons of liquid per minute (gpm) (2 gpm for oil) with a maximum viscosity of 650 centipoise (cps). It comes with 70mm and 3/4" National Pipe Taper (NPT) threaded bung adapters. This piston drum pump is suitable for use with 5, 6, 7, 15, 30, and 55 gallon drums for dispensing liquids in a wide range of industrial and commercial applications.SpecificationsPumpPiston drum pumpMaterialsPVC pump and components, polyethylene suction and discharge tubesFlow rate28 oz. per stroke (4 gpm maximum; 2 gpm for oil)Suction port1-1/2"Discharge port1/2"Maximum temperature140 degrees FMaximum liquid viscosity650 cpsFor use with5, 6, 7, 15, 30, and 55 gallon drumsWeight2 lb.DimensionsOverall length: 29"; Discharge hose: 22"; Suction hose: 5-1/2" Pumps use mechanical action to move liquids, gases, or slurries (solids suspended in a liquid or gas). The mechanical action is categorized as either positive displacement (PD) or kinetic. PD pumps capture and release discrete amounts of flow into a chamber and then force it out. Some examples of PD pumps are fuel and oil pumps in cars, pumps in hydraulic systems, and bicycle pumps. Kinetic pumps move liquids, gases, or slurries by transferring energy from the pump"s movement to the flow. They use an impeller to draw the flow in, add energy to the flow, and move it through a volute (a spiral funnel through which the flow moves), and into the system. Some examples of kinetic pumps include centrifugal (the most common pump in industrial applications), in-line pumps, sump pumps, and suction pumps. Energy sources for all types of pumps include wind power, manual operation, electricity, and gasoline or diesel fuel.Action Pump manufactures drum and pail pumps and grease, oil, and lubrication products. The company, founded in 1981, is headquartered in Cary, IL.What"s in the Box?7008 piston drum pump5-1/2" suction hose22" discharge hose70mm bung adapter3/4" NPT bung adapter