Model number: 4 gallon filter compatible with Craftsman. Wet dry vac filter for Craftsman 17810, the filter is not created or sold by Craftsman. Replace for: 9-17810 filter replace for craftsman 3 and 4 gallon vacs made 1988 and after. Use for dry pickup only; washable pleated filter paper for heavier filtering of debris Premium quality: The replacement part is made from high quality washable pleated filter paper and well-tested by the manufacturer. Compatible with: compatible with Craftsman 16950 Wet Dry Vacuums holding 3 to 4 gallons. Compatible with Models (Prefixed by '113' or '125'): 12002, 176120, 177300, 179120, 179130, 177410, 177430, 179320, 179400, 177570, 177680, 179410, 179500, 177765, 178930 and 179580 Specification: ID:4.2" (10.7cm), OD:6.2" (15.8cm), height 4.5" (11.5cm). The product is not sponsored or endorsed by Craftsman 17810 Cartridge Filter for Crafts-man's Most 3 to 4 Gallon Wet/Dry Vacs. The product is not sponsored or endorsed by, or affiliated with the brands it fit, including CRAFT-SMAN.