Product Name: Dust Collection Filter Part Number: BAFP101A4 External Dimensions (mm): Width 234 x Height 234 x Thickness 45 (1 filter per pack, for 1 use) Applicable Models: (2021-22 models) ACB50X-S (2022-23 models) ACB50Z-S I am selling this because I purchased the wrong part number. Although it is unused, the package has been opened, so please consider this only if you understand. It will be shipped in simple packaging.