Fill-Rite, a Tuthill Transfer Systems brand, offers AC / DC fuel transfer pumps, fuel management and transfer systems and flow meters for applications in agriculture, chemical, construction and transportation industries. These products are manufactured in compliance with UL and cUL certifications. Fill-Rite fuel transfer pump features a unique double diaphragm configuration that retains constant pressure, regardless of the load. The pump also automatically goes neutral once the hose valve is turned off. A wide range of these pumps and other Fill-Rite products, such as drum pumps, filter housings and oil change systems, is available on Raptor Supplies, one of the authorised Fill-Rite pump distributors.