12V Water Diaphragm Pump, 5.5 GPM, 70 PSI, 1/2 MNPT

12V diaphragm water pump boosts water pressure on demand for RV, marine, camper, sprayer, and irrigation setups. Delivering up to 5.5 GPM with a 70 PSI rated pressure (adjustable 40–100 PSI), it self-primes to 6 ft for dependable flow at faucets, showers, and spray wands. A built-in pressure switch starts/stops automatically, while overload protection supports safer, more consistent operation.

Built for quick installs and fast pressure recovery, this self-priming on-demand pump is a practical upgrade for water systems that struggle with weak flow. The 5-chamber diaphragm design supports smooth delivery for intermittent use across RV plumbing, marine freshwater, lawn and garden irrigation, and sprayer applications. For quieter operation and reduced vibration, ensure adequate water flow and proper mounting. Grab yours today and restore steady water pressure where you need it.