Model 775 - Wheeled Novec™ 1230 Fire Extinguisher Developed for the United States military as an alternative to Halon 1211 model 600K, model 775 contains 150 lbs. of the EPA-SNAP approved halon alternative, Novec™ 1230 (FK 5-1-12). This new fire extinguisher brings safe and effective fire fighting performance to the flight line while offering a superior environmental profile.