12VDC Electric Diaphragm Pump with reciprocating, spring driven configuration that maintains constant pressure regardless of load. Pump automatically goes neutral when the end of hose valve is shut off. Glass-reinforced polypropylene pump housing provides integrity and excellent material compatibility inside and out. Large, Portable Tubular Frame with Top and Bottom Tote Adapter Kits, Santoprene Diaphragms, and EPDM Elastomers. Includes Telescoping, Polypropylene Suction Tube, 1"x12' EPDM Hose, 1"x9' EPDM Hose, and Shutoff Ball Valve.