Unlike impeller-type pumps, Dometic's TW-Series pumps offer a unique bellows pump that can run dry without damage. Draws only 6 amps at 12 volts. Self-priming up to 10 feet of water. Handles up to 300 gallons per hour
T,TW Discharge pumps are used to empty holding tanks or other tanks such as grey water or fish boxes.They are not a substitute for a VACUUM PUMP.