1. Replacement filter is compatible with Dys V7 Animal, V7 HEPA, V8 Absolute vacuums. The HPEA rear filter is only suitable compatible with Dys V7 and V8 vacuum cleaners. Not suitable compatible with V6 vacuum cleaners. Spare parts n 965661-01 and 967478-01.2. Premium HEPA pre-filter and post-filter, effectively blocking small particles, floating dust and most allergens, dust mites, pollen, etc. Make sure your vacuum cleaner is percompatible withming at its best. It is recommended replace the filter every 2-3 months or depending on usage.3. Package Contents: 2 x Dys Filter, 2 x Dys V8 HEPA Filter.4. Cleanable and reusable filter becompatible withe the engine. Easy to replace, at install and disassemble. Come back to have clean air and breathe. new.5. If you have any questions, do not hesitate to contact us. contact us.