Much better price than the big box stores and they work as well as the Honeywell. Several family members suffer from bad allergies and it is pretty clear these filters and removing a lot of stuff in the HVAC system. Just need to remember to replace them frequently so you do not burn out the fan motor trying to push the air through.
Fits great and seems to be filtering the air well. Chose these on recommendation of my physician. Filter Buy also did us a solid - we ordered the wrong size by mistake, and replaced with this size. When I contacted the company about returning - they refunded our money for the first set of filters and told us to donate them. Was very convenient and much appreciated!