A dual-function pump eliminates the need for hand pumps and dry-bowl valves. The push of a button, the self-priming flexible impeller flush pump rinses the bowl as the macerator and high-capacity scavenger pump grinds up waste and pumps it out. Built-in back flow preventer. Permanent magnet type motor, fully enclosed, with stainless steel shaft. Includes a heavy-duty pushbutton and 1" to 1-1/2" discharge hose adapter.