The PZ7-2HO venturi-driven ozone generator rated for residential pools up to 40,000 gallons and residential spas up to 1,500 gallons features our patented Corona Hybrid Arc Tube, universal solid state ballast and our patented Dynamic Venturi Injector Bypass installation kit. Prozone patented Corona Hybrid Arc Tube harnesses the high ozone concentrations of Corona Discharge generators while maintaining the simplicity and reliability of VUV technology. Housed in an anodized aluminum case, the system features two Corona Hybrid Arc Tubes, universal power supply operating from 110 to 240 VAC and translucent gaskets that glow when the system is on. The Venturi Injector Bypass System allows maximum ozone/water mixing for superior water quality. The bypass also means a quick retrofit installation or replacement for all existing ozone generators. Low cost, low maintenance operation. Warranty 2 years. 110/240 VAC 50/60 Hz. Universal Voltage. Connection: 3-Prong Nema Plug. Ozone Purity: 100-Percent, no nitrogen by products. Arc Life (nominal): 20,000 hours. Operating Temperature: +25° F to +120° F. Weight: 11 lbs. Dimensions: 17″W x 3½”H x 6¼”D.