Automatic bilge pump Atwood Sahara S500 MK2. Patented X-Air™ Impeller: Prevents air locking so thatthe pump will not run dry and burn out. EC certification, permanent-magnet motor, stainless steel shaft, watertight electrical cables; permanent lubricating bearings; pump Snap-In removal from the base. Capacity: 26 l/min, Hose connector diameter: 19 mm (90° hose connector 25mm), Power: 12 V, Power consumption: 1,5 A.Retrofits footprint for existing bilge pump.- No Pipe Or Hose Removal Required: Reduces the time that it takes to replace the cartridge.