A2Z Ozone has developed a spa ozone generator that provides the same relaxing spa experience as A2Z Ozone's Aquatic 2 does, with added functionality. The Aquatic is a larger unit that comes with a power switch, replaceable fuse housing, power LED light, replaceable filter, all on the bottom of the case so that you can easily get to what you need for maintenance giving you more time to actually enjoy your spa. The Aquatic comes with five feet of tubing. You will either connect the tubing from the Aquatic to an injector or to the vacuum port on your spa. The Aquatic introduces ozone gas into your spa through a suction created by the spa injector. The injector acts like a vacuum, pulling the ozone gas out of the Aquatic and into your spa water. Your Aquatic Spa Ozone Generator is pre-assembled and ready to install. You will need a Phillips screwdriver and a set of pliers. Just some quick pointers--make sure to mount your Aquatic as high above the water level as you can to ensure the parts do not get wet. Mount the Aquatic indoors, or with secure protection from the elements outdoors. And please read all safety information in your manual. The Aquatic features a universal plug-type, meaning that you can wire it one way for 110V and another for 240V. You can see these options clearly in a wiring diagram provided in the user manual. Aquatic Spa Ozone Generator, 300 mg/hour Specifications: Model: Aquatic Technology: CD Corona Discharge Technology Electric: 100-250 VAC 50/60 Hz Power: 9W Ozone Output: 300 mg/h Size: 7.5 x 5 x 3.2 inch; 189 x 128 x 80 millimeter Weight: 1.2 pounds, 530 grams Connection: AMP model Cable: 5.5 ft Check Valve: 1/4 inch Tube: 5 ft