CleanStream Hepa replacement wet / dry vac filter. Rinses clean. Can be used for wet or dry applications. HEPA Filtration at 99.97 percent efficiency at 0.3 microns. Replacement for Craftsman filters 9-17816, 9-17907 and 9-17912 and RIDGID filter models VF4000, VF5000, VF6000 and VF7000. Fits Craftsman 6, 8, 12, 16 and 32 gallon Red Stripe shopvcas. Also fits all Ridgid 6 gallon and up wet / dry vacs. Measures 8.56 inches tall. Outside diameter is 7.37 inches. Inside diameter is 4.375inches. This filter does not fit RIDGID and CRAFTSMAN Wet /Dry Vacs that use the Qwik Lock filter fastening system.