Features a clear, screw down cover, a duckbill back flow device to prevent back siphoning, float switch, and a removable wide screen filter keeping build-up to a minimum. 3/4" discharge. 12 volt.

29-97A: 500 GPH single port, 1-1/2" inlets

29-98A: 800 GPH multi port, 3/4" to 1-1/2" inlets