FL-3203 100PSI 5L/Min High Pressure Diaphragm Water Pump DC12V Caravan Boat Features:  1. Diaphragm pump combines the advantages of self-priming pump and chemical pump.2. Using a variety of imported corrosion-resistant materials, self-priming, thermal protection, smooth operation, long-time continuous idling,  long-time continuous load operation.3. Totally sealed, high stable pressure.4. Rubber