I have only had it on my unit for about two weeks. So far I am very pleased with it contact me in about two more weeks and I can give you a better review.
[This review was collected as part of a promotion.] I wish I could give 6 stars for my FilterBuy experience. So much better than going to the hardware store and I can actually check to make sure I get the right size. The filters are installed now and my heater no longer has to strain and I can breathe clean, debris-free air. Thank you, FilterBuy!