Prozone Water Products PZ7-2HO Ozone System Generator for Residential Pools PZ7-2HO ozone system for residential pools to 40,000 gallons features 2-Corona Hybrid Arc Tube, universal ballast and Injector Bypass install kit Housed in aluminum case, universal operating voltage 110-240V and glowing gaskets; Venturi allows maximum mixing for superior water quality 110/240V 50/60Hz Universal Plug:: 3-Prong Nema Ozone Purity: 100%, no nitrogen byproducts Arc Life (nominal): 20,000 hrs. Operating Temp: 25F to 120F Install kit includes Prozone's Dynamic Venturi Injector, 1/4"ozone check valve, hose, hose clamps and adjustable saddle clamps Weight 11lbs