Zex 82006 Wire-In Nitrous Bottle HeaterThese ZEX nitrous bottle heaters thermostatically raise the bottle pressure, when necessary, by applying heat to the nitrous bottle. Consistent bottle pressure (900 950 psi) is very critical for the proper operation of your nitrous system. Use one of these heaters to increase consistency and optimize performance each and every run down the racetrack. FEATURES: Maintains Optimum Pressure w Precision Thermostats Velcro Straps For Fast; Easy Install On