Smooth flow and quiet operation for up to 5 fixtures. Designed to fulfill the water pressure requirements for the majority of recreational vehicles. Smooth flow from 0.7 gpm to 2.9 gpm. Built-in "Pulsation Eliminator" to reduce the cycling and noise. No need for an accumulator tank. Runs dry and self-primes to 9 ft. Easy to install, winterize and service.