I have been purchasing these filters for years. But this last set of filters I received looked to be assembled so fast that nothing aligned and there were gaps between the bevels.
These are replacements for the Honeywell MERV 13 filters we have been using. American made and appear excellent. I expect they will be fine, but we have just installed them. I'll know better in 3-4 months. Much less expensive.
I use 20x20 filters with box fans for cheap air filtration, so I go through them quickly, these have a higher merv for less than half the price of the filters I used to use.
Even though they say the right size, they are way too small and I cannot use them. I think they are just the wrong kind of filter. Can I please return them for a refund? Please let me know how to go about the return.