Air-Operated Double Diaphragm Fluid Evacuation Pumping System.  Polypropylene construction.1/2” NPT Inlet and outlet. Buna N check valves/diaphragms. Air valve easily removed. Three-piece manifold. Flow rates to 14 GPM. Will pass solids up to 1/16” diameter.  Ideal for high volume, low pressure applications.  Used for oil, waste oil and ATF.  Includes assembly of gauges, fittings and hoses.  Not suitable for flammable liquid.