This filter (part number 17809) is for shop vacuums.
Filter 17809 traps the dust and debris from the exhaust air.
Follow the instructions in the owner's manual when installing this part.
17809 (or 9-17809)
The manufacturer substituted part 9-17809 with this new part 17809
Hardware and Tools
9" INHx 8" INHx 8"FOT