This 5G plastic-coated steel pressure tank is constructed from PP and 304 steel, offering excellent corrosion resistance and strength. With a capacity of 5.0G, it can store a large amount of purified water. It operates in a temperature range of 1-45°C, adapting to a wide range of ambient conditions. Its maximum operating pressure does not exceed 100 psi, ensuring safe and stable operation. With a net weight of 3.8 ± 0.1 kg, it is easy to install and transport, suitable for various water purification systems, providing stable water storage and pressure support, ensuring a continuous and smooth supply of purified water.