Eco-Worthy 33-Series Industrial Water Pressure Pump 110V Ac 4.0Gpm 50Psi Rv Product Details ?Diaphragm Pump?110V AC water diaphragm pump provides 4.0GPM flow capacity. Turns on and off using water pressure at 50PSI, 1.3 Max amps. AC power supply, no need to carry marine battery with you. ?Smart Pressure Switch?Turns on and off on demand. It?s quiet, shuts itself off when the faucets are closed and runs when the faucets are opened. It also can adjust according to your needs, adjustable pressure range is 45-70PSI. ?Reliable Performance?Self-Priming up to 9.8 vertical feet, lift up to 148 feet. Thermal overload protection is built into the water pump to make it safe to use. When the temperature is above 70?/ 158?, it will automatically disconnect the circuit to protect the motor. ?Multipurpose?The nemesis of low water pressure. Support continuous operation for more than 1 hour. The water transfer pump is suitable for many fields, like RV, Marine, Boat, Irrigation, Sprinkler, Faucet and so on. ?4-Year Warranty?Your First Choice: We always pay attention to customer shopping experience. If you have any questions during use, please feel free to contact with us at the first time. We will always be here. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.