ROSS 3900B0700 Pilot Valve with Base D2153A5904 + D1187F91 Features: High-speed poppet construction Constant repeatability Non-friction Viton seals on metal seats Non-lube Specialized low-wear body coating Blowhead compatible Separate Kick-Off valve available Built-in flow controls and inlet shut-off Built-in pressure boosters Special base and two signal options Standard Specifications: Dimensions – inches (mm)