2911-6878 Features: -Cartridge filter.-Fits Ridgid and Craftsman red wet and dry vacs.-Fits full size vacs.-High efficiency.-For dry use only.-Not recommended for wet pickup as it can reduce the life of the filter.-Resists clogging.-Easy to clean by tapping or rinsing.-Reusable. Color/Finish: -Maintains suction power when used with fine debris like drywall dust, cold fireplace ash, cement dust, sawdust and auto refinishing.