ShurFlo's Aqua King 2 Fresh Water Pumps Are Designed for boats with multi-fixtures providing just like home shower pressure and can operate at lower flow conditions without cycling. A Built in Mechanical bypass function enables these pumps to vary the flow rate for any on demand condition, without the need for an accumulator tank. with heavy duty motors built to withstand the tough marine environment these motor's feature an electro-coated seamless shell motor, O-Ring sealed end bells, and complete sealed wire entries on the Motor shell and pressure switch. the Aqua King 2 Fresh Water Pumps can run dry without damage. inlet strainer 1/2" hose barb fittings are included. (Aftermarket models only). Ignition Protected. Thermally Protected.