4 stage high pressure Hand pump pressure rises to 6000psi in a smooth upward and downward motion, which is more efficient than traditional pump Pump body with high quality 304 stainless steel construction, Tungsten coating finish for ultimate fadeless and anti-rust performance Ergonomic handle for comfortable grip, The operation requires little effort. Precise pressure meter to monitor pressure level, safer and more reliable to use Built-in oil and water separation function, helps the system air filter remove harmful moisture