The Dometic PML250 pump ensures a top cooling performance from your air conditioner. It has a liquid-cooled motor and can be run in open air or submerged. The proven magnetic drive eliminates the troublesome mechanical shaft seal. There is no seal wear, power-robbing friction, or leakage through the seal. The impeller and drive magnets are strong, permanent ceramic types, which prevent slippage. This ensures that full motor power is converted into pumping power. Centrifugal pumps require a flooded inlet and should be mounted below the waterline. Ensure your onboard comfort.