I have been buying 3m filters for my ac from SAMS club for years but the last batch has issues. I think it is too restrictive and causes my furnace to cut off or short cycle. A new filters fixes the issue but returns in less than 30 days, I can feel the decreased airflow in the registers. Also, I recall the 3M filters used to have rounded folds in the filter material however these newer ones have very sharp folds like a W or V. I am not sure if the earlier version had a lower merv rating. I can no loger use these for more than 20 days, and we do not have any pets or a dusty house.

Very well made, easy to install and the fit is right, but check your owners manual or HVAC professional to be sure it's appropriate for your unit. I got a scolding and was told to use something rated MERV 8 or less to avoid straining my equipment. So I now hope Sam's will stock a wider range of options, because I did like this brand and style.

Value, functionality, and convenience. Short of next weeks winning lottery numbers... What more could you ask for...?

These are very good filters. I change them every 2 months and they seem to help with dust and pollen.

I am pleased with the 3 month life of these filters, and the app that will remind me to change them. durable and appear to be high quality.

We have tried different brands because we switch them often and they are a little pricey but they are so worth it. I see the difference in the air quality in my home.

Good value, had in my size without going to a hardware store. Very good filtration, but (and a good but) you have to replace the filters about once a month with the effectiveness of filtration.

These filters arrived quickly and neatly packed. The value for the 1600 style filter is very good considering I have paid more for a lesser quality filter from another online retailer. I’ll order these again.

This model filter is the best. It's a full boxed filter so it holds up well in a strong blowing ac. Doesn't cave in like lot of other filters. And filters good also. Always purchase these. Good price for four pack.

I cannot give you feedback on how they work yet because I haven’t put them in. My concern is why I would pay the same price for a. 20/20/1. 20As I did for a 12/12/1 ????