This compact shower sump system featuring the Johnson Pump removable 1000 GPH Cartridge Bilge pump includes the industry leading Ultima Switch technology for automatic operation. Offers multiple inlet ports for handling waste water from more than one tapping point and an easily removable mesh filter. Includes check valve to restrict back flow into tank and has a tight-fitting lid to minimize splashing and odors. 12V, 5A Fuse, 3/4" discharge outlet.