Pro-Set® 12 CFM Sparkless Vacuum Pump KEY FEATURES • Designed and tested to meet ANSI 12:12.01 Ignition Proof standards • For use on refrigeration systems utilizing: Class A1 (nontoxic, nonflammable), Class A2L (non-toxic, low flammability), Class A2 (nontoxic, flammable), and Class A3 (nontoxic, flammable) and Ammonia (NH3) • Air-cooled, thermally protected motors encased in a durable aluminum housing