Shurflo 8-1/8 in. x 5 in. x 4-1/8 in. Aqua King II Black 55 PSI 3 GPM Automatic Fresh Water Pump

4 chamber design for smooth flow at all demand levels. No rapid cycling. Designed and built specifically for the harsh marine environment, they are dry self-priming up to 6 ft. and can run dry without damage. Featuring sealed motor and pressure switch in a seamless, E-coated housing for superior longevity. Ignition protected, thermal breaker. 2.0 GPM pumps handle 1 to 2 fixtures, larger pumps handle multi-fixture installations. Includes fittings (swivel straight adapter 1/2 in. to 14 NPT x 1/2 in. barb (2ea). 4128 Series-direct replacements with same mounting bracket as Aqua King 29014138 Series-direct replacements w/same mounting bracket as Aqua King 3901.