Designed as an Easy-To-Install, Do-It-Yourself backup sump pump, it includes a back-flow preventer and battery powered high water alarm. The pump is mounted on the ceiling, keeping it clean and dry until needed and uses water pressure to pump water. This design meets most local plumbing codes for back-flow prevention, includes many of the installation parts, and means greater efficiency and higher pumping rates. It connects directly to your home water supply, using push-fit pipe fittings for copper, PEX, or CPVC piping. Suitable for use with Radon covers. This model includes a brass dual check valve, brass shutoff valve, and a push-fit tee and adapter, so it is easy to install right out of the box.