Keeps the water in your spa, swimming pool, or hot tub fresh and clean using a high-output sanitizing system. Reduces chlorine usage by 60–90% while providing the natural purifying benefits of ozone for spa and hot tub water. Saves money on chemicals, eliminates odors, and features easy installation. Mounts to the interior wall of your spa, hot tub, or similar location. Includes ozone generator, ozone supply tubing, check valve, and amp connector. EU plug included. Specifications: Note: This product does not have a built-in air pump and must be used with an external jet device. Material: Plastic, PVC Color: Black Size: 160 x 127 x 70 mm (6.30 x 5 x 2.76 inches) Input Voltage: AC 100V–240V / 50–60Hz Ozone Capacity: 50–300 mg/hr Package Includes: 1 x Ozone Generator 1 x 1m PVC Tube 1 x Check Valve 1 x Amp Connector