Poor return experience with unnecessary steps which cause confusion Poor disclaimers stating the possibility of filters not fitting due to brand change and nominsl dimensions will vary
I've used these filters for a couple years now. They are good filters which I have replaced every 6 months when the HVAC system is cleaned for the next season.
Great filters. I use them for my furnace and my overhead air cleaner in my shop. They work great. I also really like that I can schedule the delivery of one filter every quarter, and I don't have to think about swapping out the furnace filter. And the 1" pre-filters I buy for the air cleaner really save the very expensive 2nd stage filter. I have been through about 12 pre-filters and the 2nd stage shows very little buildup. Amazing! (I just wish the sold the 2nd stage filter.)