Designed to pump solid, un-macerated waste, this diaphragm pump boasts quiet operation and easy installation. The Gulper Sanitation Pumps feature 4.7GPM capacity and are self-priming up to 9.8 feet. They can run dry for extended periods without damage while the inlet and outlet ports rotate allow you to install them in hard to reach locations. This toilet pump features a no filter design so it wont clog and is easy to maintain. Key Features Manages un-macerated toilet waste Runs dry without damaging pump No filter design doesnt block or back up Rotating inlet and outlet allows installation in tight or awkward spaces Self-priming up to 9.8ft (3m) Large single diaphragm design is easy to maintain