SPECIAL ORDER 
 Designed for altitudes greater than 4,500 feet above sea level. four preinstalled brass burners that generate 8.4 cubic feet per hour of CO2 using liquid propane.
• A safety tip-over switch automatically stops gas supply to the burners if the unit is not upright
• The removable burners makes it easy to reduce the CO2 and heat output to suit a smaller growing space.
• The unit includes gas regulator, 12-foot hose, hanging hardware and a three-year warranty.
• Electronic ignition and dual solenoid valves eliminate the open pilot flame and provide safe, reliable starts.