Feature: 1. Accumulator Tank: The pressure value is 10psi-125psi, this tank is suitable for most pumps on the market and has constant pressure feature, reducing pump circulation and solving pulsation problems in RV or ship freshwater system 2. Extended Life: Store the water pressure of the water pipe during peak hours, buffer the impact damage caused by high water pressure on the pump, reduce noise and frequent pump start up, and provide a more stable water supply 3. Wide Application: Pre inflate the tank with a pressure of 10psi (0.7bar) before leaving the factory, compatible with RV and boat, food and drink filling, liquid conveying, and any other pressurization system, helping to reduce frequent pump starts 4. Easy Connection: The connection port adopts a threaded joint connection, and the wing nut connector is connected to one end of the accumulator tank. The hose is fixed by a clamp and connects the accumulator and the pump 5. Sealed and Secure: The inlet and outlet diameter is 1/2 inch MNPT, using standard car tire valve. The pressure tank provides a sealing structure to effectively prevent leakage or disconnection during use, improving security and reliability Specification: Item Type: Accumulator Tank Size: Approx. 20 x 12.7 x 11.4cm / 7.9 x 5 x 4.5in Internal Volume: 0.75L (25.3FL.OZ) Inflation Pressure: 10PSI/0.7BAR Maximum Operating Pressure: 125PSI/8.6BAR Air Fill Valve: Standard Car Tire Valve Inlet Outlet Diameter: 1/2 Inch MNPT Product Use: Play the role of constant pressure, prevent the system pressure from rising and falling, so that the water flow is more gentle. Function: 1. In RV Use: It can effectively absorb the excess hot gas entering the water system pipeline due to the heater, and there will be no pop sound when the faucet is opened 2. When the RV Leaks: After the long term use of the RV, the pipeline connection may be loose, and the drip water leakage may occur, resulting in frequent start up of the pump. At this time, the pressure tank can effectively reduce the number of startup of the pump 3. During the Bath: The water pump starts and stops frequently because of the uneven pipe and nozzle, and the pressure tank can effectively improve this situation Working Principle: 1. The pressure tank has pre charged pressure before leaving the factory. 2. When the water pump is turned on, water enters the pressure tank. When the pressure tank is filled, the water pump stops working. 3. When water is needed, the water in the pressure tank first enters the pipeline due to the action of air bladder pressure. The water pump remains off until the pressure in the pressure tank is lower than the starting pressure of the pump, and the cycle repeats.. Package List: 1 x Pump Body 2 x Wing Nut Fittings 1 x Elbow Barb Connector 4 x Clamps 1 x Sealing Tape 1 x User Manual Note: Please read the manual carefully before use and adjust the air pressure in the tank below the pump switch pressure by 3psi (0.2bar).