These were too big for my opening. I returned them.

Not nominal size as printed on package, ONLY FULL ACTUAL size, had to return!

These are really good air filters without blocking to much air flow

These are some of the best furnace filters

These filters work well and are a good value

Feels like a well made filter, not flimsy.

Great quality & much cheaper than I can buy in the store with more quantity- win - win in my book!

Not the best filters on the market, but better than standard and very affortably priced.

Great to have on hand without going to the local supply store.

have made a difference in the amount of dust in the air