PERFECT FIT - They are designed for compatible with Dys V7 Animal, V7, V8 Absolute vacuum cleaners. The post-filter is only available for compatible with Dys V7 and V8 vacuums. Not suitable for V6 vacuum cleaners. Please confirm the model and size of your accessories before purchasing! For details, refer to the product photo.^ COMPARE THE PIECE 965661-01 pre-filter and 967478-01 post-filter.^ VALUE PACK - Includes 3 post-filters, 3 pre-filters and 1 brush.^ HIGHLY EFFICIENT FILTERING TECHNOLOGY - The high-end pre-filters and post-filters at high efficiency, to ensure that your vacuum cleaner works properly and optimally, it is recommended replace the filter once every 2-3 months, or depending on usage.^ YOUR NEEDS - If you have any questions, do not hesitate to contact us. contact us, we are committed to; to offer the best quality products; and at provide efficient customer service.