The A2Z SP series is designed to integrate smoothly into your swimming pool system via ozone injection method. The SP 3 model outputs 3g/ozone per hour and is ideal for pools (or other large water applications) up to 25,000 gallons to 95,000 liters. If you are tired of itchy, irritated eyes and skin from chlorine and chemicals- then it is time to try OZONE! Ozone is faster and more effective then chlorine at killing bacteria because chlorine needs to diffuse through the cell wall and disrupt bacteria metabolism. Ozone rips open the cell wall from the outside, causing the cell contents to fall apart. This process is called cell lysing. With ozone, after the destruction of the cell, 03 simply reverts back to 02. The additional oxygen in the water creates a safe, clean and refreshing swimming experience that only ozone can provide. There are no toxic or hazardous byproducts! Installation Notes A2Z SP series is designed to plumb into your swimming pool pipeline via venturi injector method. A2Z manufactures our own venturi injectors in ”, ”, ” 1 inch, 1.5 inch and 2 inch sizes. Identify the pool water supply line after the pump, filter and heater- tap into this location. Glue in the proper injector, noting the direction of flow, arrow on venturi should be set as the same direction as water flow. In-depth installation is included in our SP series manual (included with every purchase) SUGGESTED VENTURI INJECTOR SIZE FOR SP-3G: 1/4" or 1/2" (sold separately) All of our generators come with a one year full parts and service warranty, we also offer a 30-day money back guarantee! Return your unit in new condition and receive a refund minus 10% restocking fee. Shipping is paid by the customer. In the case of warranty work, contact us for a return label and shipping will be paid for by A2Z Ozone, Inc. International shipping will be paid for by the customer both ways. However, if you have an issue with a unit, we will be happy to troubleshoot with you over the phone. Often, an issue can be resolved in this way, and we can talk you through a repair. Each individual case is different. We at A2Z Ozone, Inc. are committed to providing you with the best service possible.