AURELIO TECH 12V Macerator Water Waste Pump 45 LPM 12GPM Toilet RV Trailer Camper Marine Boat Amp Draw: 12A Volt: 12V; Dimensions: 13.98" x 5.24" x 0.43" Pressure off (psi/bar): NO Open Flow: 45 LPM / 12 GPM Inlet 1 1/2"- discharge 1.