Empty your tanks in less than 5 minutes including pulling out the hose and putting it back. Take the chore out of dumping your tank - no more waiting for flex hoses to drain clean! Macerator pump grinds and fluidizes waste allowing it to flow quickly through the discharge hose. So powerful, it can pump up to 100' uphill! It pressurizes the 1" diameter discharge hose, so it's cleaned by the grey water which is discharged last. Easily and securely connects to most RV dump receptacles preventing accidental spillage. Kit includes macerator, 20' hose with drip proof valve, wiring kit and all clamps. 1/box