I have an old DD whose filter I cleaned and reused. After that summer load of summer dog hair, she smelled great Ode-de-Pooch. It's time for a new filter. After reviewing them on "Replacement Sites" and the original "Vacuum" site, I contacted Revain to look at offers. Found. read reviews. Great price (about 1/2). I agree with the reviewers that it fits perfectly. Round raised clips fit into the top of the vacuum canister like a genuine part and there is no unpleasant odor coming out of the exhaust pipe. 1. Pure white filter media looks and feels like the original filter media. Polymer fabric with a cobweb coating, waved in a fan shape. 2. The length of the filter is the same as the original part. 3. The number of accordion folds is the same. 4. The weight of the part is the same. 5. The center hole of the cylinder is the same. 6. The product is odorless (no). 7. The design of the part has integrity. I think this is a great replacement part and I would order this item again at any time.