Johnson Pump HD Bilge Pump 4000GPH 24V No Switch. Johnson Pump makes a great one for pretty much any application you can imagine from automatic bilge pumps to handheld pumps to industrial pumps. Whether you have a commercial fleet or a boat with a residential slip a high-demand bilge pump is a must and Johnson Pump has pump to fit the bill. The SPX Johnson Pump marine bilge pump is an advanced technology heavy-duty totally submersible pump that effectively handles all bilge pump applications. With a stainless steel shaft and tough thermoplastic pump bodies this submersible pump has the critical element down low where it is hidden from view. Also the Johnson Pump marine pump is liquid cooled so the pump operates at lower temperatures than the engine it is attempting to replace. A reusable easy-clean up system is used with pumps to reduce maintenance. A removable check valve is included with the Johnson Pump marine pump so you don't have to worry about a mess when replacing the pump. Installation is easy so follow the instructions in the user's manual and you're good to go. Features of Johnson Pump HD Bilge Pump 4000GPH 24V No Switch: 24V 4000GPH Bilge Pump With stainless steel shaft tough thermoplastic bodies liquid cooled 12-pole motor with double ball bearings Removable check valve included 1.125in & 1.25in ports Included Accessories: HD Bilge Pump 4000GPH 24V Documentation Package Contents: Johnson Pump HD Bilge Pump 4000GPH 24V No Switch Johnson Pump 40084: HD Bilge Pump 4000GPH 24V No Switch