Lee Company’s model 375 Spring Biased Shuttle valve for high pressure application with system pressures up to 5000psi has a 0.375” diameter. The normal and service ports are connected and the poppet is biased so that the emergency port is normally closed. The biased port is available at either end of the miniature valve for installation flexibility. The valve is made entirely of stainless steel, weighs only 12grams and is tested and inspected for reliable performance.