The Vacmaster Wet/Dry Vac Pump Accessory quickly pumps water out of most wet/dry vac tanks with a drain. Simply attach the versatile pump to your wet/dry vacuum using the included adapters, fasten a standard 5/8 inch hose to the flow valve and the water evacuates at 10 gallons per minute or 40 feet high. It also features an easy access on/off switch, shut off valve and a strainer that protects the pump from large debris. The high impact housing and polypropylene attachment caps provide strength and long lasting durability.