Shurflo Pre-Pressurized Accumulator Tank SHURflos Pre-Pressurized Accumulator Tank smoothes water faucet pulsations and reduces pump cycling to keep water line pressure up and pump motors cool. The SHURflo accumulator tank reduces plumbing system noise, increases the life of your pump and saves battery power. Coupler fitting is included. Features Benefits Reduces pump cycling Smooths water faucet pulses Pre-pressurized to 30 PSI with built-in diaphragm Specifications Dimensions 9.1 x 4.8 3.8 23