Well, for starters, I ordered this with the hot tub, thinking it would be installed and shipped with the tub, as it was with other people that purchased these items together and indicated in customer comments. I received the ozonator separately - still waiting for the hot tub. They sent a different ozonator than I ordered - pictured below. I contacted Wayfair and they immediately sent a replacement (excellent service) of the same incorrect item. I have not been able to install the ozonator yet to assess the product, but am disappointed the shipped product was not what was advertised with the hot tub or installed as with other customers. If they are going send a different product than what was advertised and ordered, they need to set appropriate expectations with the customer...not what I have come to expect with Wayfair.