Johnson Low Boy Bilge Pump Low Profile pump design for ease of mounting and removal in tight bilge areas. Perfect for vessels with bilge pumps mounted beneath inboard or IO engines. Removable cartridge style. For L550 LB we have easy-to-install Dura-Port discharge ports to eliminate stress cracking caused by over-tightened hose clamps. The pumps will be delivered including both a straight and a 90 smooth elbow Dura-Port. Dimensions Max length 146 mm 5.75 Width 81 mm 3.2 Height 72 mm 2.82 Wire