The Flojet 2.9 GPM 50 Psi is a self-priming pump which features a built-in pulsation eliminator that ensures smooth flow without the need for an accumulator tank. Soft, absorbing mounts reduce annoying vibration and noise and the self-priming feature allows the pump to run dry. Snap ½” port fittings simplify installation. Made of corrosion resistant materials. Suitable for bringing pressure to outdoor showers, cleaning jobs, portable water, camping and caravans. Flojet will keep your water pressurized for years to come.