The Shop-Vac CleanStream replacement cartridge filter is designed for both wet and dry pick-up. Out-performing other filters, it resists clogging and maintains suction power even when used with fine debris like drywall dust. This replacement cartridge filter features an exclusive Gore-Tex nonstick surface that captures 99.97 percent of particles at 0.3 microns. The reusable filter cleans easily by simply tapping or rinsing to use again. Fitting most full-size wet/dry vacuums.