Add this compact Shurflo Accumulator Tank to your freshwater system for smooth, steady water flow. Measures a very small 8.9" x 4.06" x 3.6" but helps end annoying water surge. Pressurized built-in diaphragm (instead of just an air pocket at top of tank) cushions surges to assure a smooth flow. Connects to main water distribution line after pump in demand system. Works with pressures up to 125 PSI. Sturdy nylon housing. Easy installation. Mounts in any position (mounting bracket included). USA. Easy installation.. Mounts in any position (mounting bracket included).. USA. Connects to main water distribution line after pump in demand system. Works with pressures up to 125 PSI. Sturdy nylon housing.