My 16"X25"X5" filter was 4 7/8 thick. It was about 1/2" too thick for my particular venting. Be sure to measure your filter box before ordering...........

I have used this air filter in my home and it noticeably reduces the amount of allergens. Also amazing how much it picks up when it is time to replace. A great product.

We use to buy the "cheap" drug store air filters and thought they were doing a decent job of filtering. Since we changed to Filtretes our house is cleaner and my furnace internals stay cleaner.

[Employee of 3m-filtrete] I am fairly diligent in changing the air filter in pur home. The amount of dust that is filtered out of the air is amazing. Thanks for this great product.

I've been using the Filtrete Healthy Living Air Filters for many years now and have been extremely happy with the results. Having 2 dogs, this filter catches a lot of the extra "fluff" in the air.

I have been using Filtrete for years & switched to this filter because I have seasonal allergies. The difference is notable. Wonderful filter! Can't say enough about Filtrete quality.

Just had a high effiency furnace installed last year and have a new 4" filter system. It does a great job and I have wonderful air quality in my home.

I prefer Filtrete filters over all other brands and buy them when available but the selection of products is limited at most retailers. Wish the healthy living filters were stocked better.

I've been using the Filtrete allergen filters for over 8 years in my forced air furnace/AC unit. I can breathe better and the house has reduced dust. It makes for easier cleaning!

Our house is more than a century old (built in 1888). Dust particles were magnified in the light that streamed through the over-sized windows. Filtrete filters have given us new appreciation for floor to ceiling sunlight.