Photo 1 of 4 Pack BU3523 BU3120 Pre-Motor Foam Felt Filter Kits compatible with Shark BU3120 Clean Lightweight Cordless Cleaner, Shark BU3523 Clean Empty Cordless Stick Vacuum, Auto Empty System, XFBU3000

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Photo 1 of 4 Pack BU3523 BU3120 Pre-Motor Foam Felt Filter Kits compatible with Shark BU3120 Clean Lightweight Cordless Cleaner, Shark BU3523 Clean Empty Cordless Stick Vacuum, Auto Empty System, XFBU3000Photo 2 of 4 Pack BU3523 BU3120 Pre-Motor Foam Felt Filter Kits compatible with Shark BU3120 Clean Lightweight Cordless Cleaner, Shark BU3523 Clean Empty Cordless Stick Vacuum, Auto Empty System, XFBU3000