Nitrous Pro-Flow solenoids are designed with the professional racer in mind. These high quality solenoids feature stainless bodies, high lift plungers for maximum flow capacity, and Teflon seals for longevity. Nitrous Pro-Flow also offers nitrous solenoids with an integrated purge port for ease of packing and for the most complete purge of the system for consistency & reliability. Available in orifice sizes for any application. Special Alcohol compatible solenoid available.