Abstract: Filter Flosser is a tool designed for cleaning cartridge filters that are used in pools, spas and industrial filtration systems. There is an ergonomically designed handle with an on/off ball valve switch to turn water flow on or off. There is a nozzle portion that is curved to wrap partially around the shape of a cartridge filter. There are holes in the nozzle portion which are evenly spaced that spray water into the cartridge filter elements to get between the pleats and remove dirt deposits.