The Easy Set® inflatable pool is easy to set up and store. This pool will make your backyard the place to be all summer as your family can relax and play. Hydro Aeration® Technology is incorporated to the cartridge filter pump providing improved circulation and filtration, improved water clarity, and increased negative ions at the water surface. A 110-120 volt Krystal Clear™ cartridge filter pump is included and is very easy to install.