The EGO3 hot tub filter is a brandnew innovation that makes your life just easier. Cleaning hot tub filters was never that easy. And these hot tub filters are just saving your time and money. Even if you hate cleaning your spa filters, you don`t have to clean your EGO3 filters. Just change the filter material. It`s still cheaper as your old cartridge filters cost you when you were cleaning them all the time. Try it and you will love it. Trust your EGO3 hot tub filters!