Yes, this is a DCF-3 filter. Not suitable for Sanitaire vacuum cleaners. The filter height is correct. The top handle has a different shape. The opening at the bottom of the filter is much looser than any other DCF-3 filter we've used. Something in the design prevents the lid of the Sanitaire canister from snapping due to this filter. We ordered 2 of these and both have the same problem. We ordered DCF-3 filters from another brand and they work just like the factory filter.