This filter set is compatible with:

• the following Shark Rocket vacuum Cleaners: CS100, CS110, HV290, HV292, HV300, HV300W, HV301, HV302, HV303, HV305, HV307, HV308, HV310, UV450.
• Compare Part # XFFV300 & 1080FTV320.

Vacuum Filter Replacement:

• 4 Pack is complete with 4 foam filters, 4 textured felt filters, and 4 allergen trapping felt filters. Each material works together for maximum efficiency in collecting and trapping dust and allergens.

Pack contents:

• 4x Foam Filters
  4x Felt Filters
  4x Post Filters

Reminds: the post filter is in the middle of the foam & felt filter (if you can not find it, please open one bag to check)