In our Dolphin Collection we have the Dolphin Diagnostic 2010 and the Dolphin Diagnostic 2020. The Dolphin 2010 Diagnostic Robotic pool cleaner is designed for residential pools up to 20' x 40'. It scrubs and vacuums the entire pool floor, walls and the waterline. The Dolphin Diagnostic operates independently off the pool pump and filter. It microfilters water through its own on-board filtration system. Cleaner is equipped with self-monitoring diagnostic software and an air sensor, which makes the Dolphin suitable for beach-entry pools. The Dolphin will save you up to 50% on electricity and backwashing costs and up to another 30% on chemical costs. The Dolphin 2020 Dynamic Robotic pool cleaner is designed for residential pools up to 20' x 40'. It scrubs and vacuums the entire pool floor, walls and the waterline. It also includes "Joy-Stick" control to manually guide the Dolphin to trouble spots or tailor custom cleaning patterns. The Dolphin Diagnostic operates independently off the pool pump and filter and microfilters water through its own on-board filtration system. Cleaner is equipped with self-monitoring diagnostic software and an air sensor which makes the Dolphin suitable for beach-entry pools. The Dolphin will save you up to 50% on electricity and backwashing costs and up to another 30% on chemical costs. In our AquaVac Collection we have the AquaVac Tiger Shark Pool Cleaner, the AquaVac Mako Shark Pool Cleaner, the AquaVac Mako Shark2 Pool Cleaner, the Tiger Shark 2, the King Shark 2, the King Shark 2 Plus and the King Shark. Whether you choose from our Aquabot Collection, Dolphin Collection or our AquaVac Collection you are sure to be pleased with the performance of each product. They are quick, easy and simple to use!