The owners of Dolphin and Aquabot were partners in the Dolphin. They had a falling out and the one left and started Aquabot. I have Aquabot and my parents have Dolphin. They love theirs, but service is a bi*ch. I get my Aquabots locally in Wyckoff, NJ from their huge warehouse. Haggle with them and get a great price.....service is great also.