The Zebra Dual Flow Water Pump and Faucet can be used for tank water or city water. It features a built-in check valve and all directional spout. Includes a 3/8" barbed hose connection for tank water and a 1/2" FPT connection for city water. Self-priming capability for tank water. Constructed with durable ABS plastic. Dual Functionality â Can be used for both tank water and city water, providing versatile water access. Easy Operation â Press handle down for city water and pump handle for tank water, ensuring simple usage. Built-in Check Valve â Features a built-in check valve for reliable performance and water flow control. All Directional Spout â Equipped with an all directional spout for flexible water direction. Durable Construction â Made from durable ABS plastic for long-lasting use. Self-Priming Capability â Self-priming capability for tank water ensures efficient water flow. Included Connections â Includes a 3/8" barbed hose connection for tank water and a 1/2" FPT connection for city water. 3/8"" barbed hose connection for tank water / 1/2"" FPT connection for city water Self-priming capability for tank water Durable ABS plastic construction for lasting use | Zebra RV R3700-PW Dual Flow Water Pump and Faucet | ABS Plastic