Shurflo SHR4048-153-E75 12V DC 4 Gallons Per Minute High Flow Fresh Liquid Pump 0.5 in. NPSM Male Ports

Shurflo 4048153E75 4048 High Flow 4 GPM 55 PSI 12V Fresh Liquid RV Pump 4 gallons per minute Reduced cycling with Flow Reaction Technology Smooth high-powered flow Runs dry - thermally protected Self-priming to 6 vertical feet Internal Bypass - low cycling Built in check valve prevents back flow with preset switch and bypass adjustment