PRODUCT FEATURES ?Can be used as compressor or vacuum pump (same model) ?Can be mounted in any plane ?Custom mounting configurations available ?Head mounts in any of four positions ?Consult factory for voltage options ?St......PRODUCT FEATURES ?Can be used as compressor or vacuum pump (same model) ?Can be mounted in any plane ?Custom mounting configurations available ?Head mounts in any of four positions ?Consult factory for voltage options ?Stroke options available MATERIALS OF CONSTRUCTION ?EPDM (Ethylene Propylene Diene Monomer) valve and diaphragm ?Chemically resistant PPS (Polyphenylene Sulfide) for all other wetted components