My Cougar fireplace vacuum developed very poor suction after 8 years of use. I noticed that even after emptying the bucket and cleaning (as best as possible) the two filters, that suction dropped off with the bin only 1/2 full.Before investing in a new vacuum, I decided to replace the original filters with these replacements, and WOW, my vacuum suction was completely restored. After two weeks of use, it still has great suction, and I decided to order a backup set of filters to install as soon as my suction begins to wane.
Rating: [5 of 5 Stars!]