I wanted to like these, but the size it states is too big for the opening. I don't understand how that is happening, considering I bought the correct size.

I noticed how well the filters were made when I had to trim them to fit my return. Can you please stock 12x30x1 so I don't have to cut off two inches from the 14?

[This review was collected as part of a promotion.] I use 3M Filters. I like the quality of 3M products and I prefer their filters as well. I feel like it traps more than others.

Great air filter at almost half price from other retailers. The air becomes so fresh at my 3 bedroom home after I replace our old filter with this filter. Highly recommended 3M, which brings the quality.

[This review was collected as part of a promotion.] I love these filters! They trap ALL the allergens and dust! Keeps us a lot less sick as well. These are the top brand and the best filters that hold up. I won't buy any other brand.

Extend the life and save money by simply vacuuming the side of the filter on which the air FLOWS INTO it. Do this after the recommended filter change interval which is 90 days. Cut your cost by half or possibly even more!

GoodBuy.

Best on the market

Filter works great !

Filters work great