Pumps are air-driven, double-diaphragm pumps. The simple design and operation offer many advantages over other types of pumps. Ideal for OEM applications and offers multiple mounting positions. Great for car wash chemicals, wash solutions, dispensing of pigments, inks, paints, additives and sanitizers. Various mounting positions. Similar envelope dimensions to a standard 1/4" pump, but almost double the flow rate. The pumps are able to dry prime under most suction lift and flooded suction conditions. Polypropylene body.