It is hard to find 4-inch-thick filters in the store it is nice to have " click and ship' available

Great price for these filters. We have been using them since we moved into our newly built home 2 1/2 years ago.

[This review was collected as part of a promotion.] I have been purchasing 16x25x4 filters for years. 3M recently changed the filter design (thick paper stock casing has no diagonal elements) but also the width. As a result the filter width is 1 centimeter too narrow and thus leaves a gap through which unfiltered air can go into the blower. My observations are consistent with what another user's review from early August 2025 is describing, and their photos clearly show the difference in width between the previous and new designs of the filter. At the very least you should indicate clearly on the label that the filter is narrower than previously. I know you made 2 versions of a 16x25x4 in the past (regular and slim; the regular version fits my furnace). Are you now only making narrow versions?

Great price on these filters that i have to buy anyway. Glad i could get them from Sam's!

Good price for good filter

Great air filter that fits correctly at a great price!

Just can’t beat the best brand!

This is a dependable product that does what it says

Very high quality filters, great price at Sams Club

Hard to find this size and Sam’s price is better that the furnace guy