Johnson L450 Submersible cartridge bilge pump with a flow rate of up to 49 litres per minute. The Johnson submersible bilge pump comes complete with easy to install Dura-Port discharge ports to eliminate stress cracking caused by over tightened hose clamps. The Johnson L450 bilge pump includes a straight and a 90 degree smooth elbow plus a removable check valve. The Johnson submersible bilge pump can be easily cleaned and maintained without the need to use tools or remove the casing from the boat and hoses. This bilge pump can replace Volvo Penta 21662681 and 21662682 bilge pumps, and will increase the litres per minute from 25 / 32 to 49LPM.