If your home has a basement or crawl space, the Zoeller at Home 1/3 hp Cast Iron Submersible Sump Pump will work hard to keep your home and foundation dry. these high-quality sump pumps are easy to install into a sump basin or submersible pit and you can have them up and running within minutes. Once installed, you can depend on a cast iron sump pump for automatic and dependable flood control year after year. this sump pump automatically prevents basement flooding. When the water around the pump rises too high, the floating electromagnetic switch engages the pump's motor to begin the water transfer. the submersible pump will continue operating, without slowing down, until your levels return to normal. A 1/3 hp motor collects and moves up to 42 gpm of water away from your home. the impeller, the device that pulls the water in, has a reliable nonclogging design that will continue to process overflow even during severe storms.