Blue-White’s CHEM-FEED® Metering Pumps meter precise amounts of soaps, waxes, under carriage cleaners and rinse aids. C-1500N Series feature Blue-White’s exclusive Heavy Duty Head with Cartridge Valves constructed of tough PVDF. The double ball valve design provides enhanced priming, and is exceptional for purging air and gas. The standard C-1500N has a dial-type, top mounted output control. Deluxe units have a built-in percentage controller for adjusting both the stroke of the diaphragm and the controller. Low feed units provide excellent accuracy when injecting small amounts of costly chemical. Also available: high output metering pumps for truck washes, and flow meters.