General Purpose Wet/Dry shop Vac Cartridge Filter Compatible with all Current Craftsman Dry Vacs 5 gal or larger. They will also fit 8 12 16 32 gal. vacuums produced since 1988. Package Includes 1 x Replacement Filter and 1 x Retainer Nut for Wet/Dry Vacs. The filter keeps clean while reducing dust pollen and other allergens into the air you breathe. For best results, the filter should be changed every 2-3 months. Material: Paper Cartridge. Assembled. Product Size: 8.5" x 6.5" Replacement Vacuum Cartridge Filter for Craftsman 917816 General Purpose Red Stripe Vacuum 8.5 inches For Craftsmans shop vacuum replacement filter For Craftsman 6 gallon wet dry vac filter For Shopvac air filter For 9 17916 shop vac filter For Craftsman filter 9 17816 For Craftsman shop vacuum filter With filter nut for craftsman shop vacuum For filter part# 9 17816 Used for Dry Debris Pickup Pleated Paper Filter for better filtering of debris Works with Threaded and Non-Threaded Filter Cage Studs Includes Filter Nut to secure filter to non-threaded studs HOW TO INSTALL STEP 1: Unscrew the nut and remove the dirty filter. STEP 2: Slide the new or cleaned filter back on the filter cage. STEP 3: Use our nut or original nut (included with vacuum) to secure the new or cleaned filter in place. SPECS: Weight: 15.3 oz MPN: VF CRAF17816 Compatible with: Craftsman Shop Vac Replaces Part #: 17816, 9-17816