Other 12x12x1 filters fit snugly. This one is loose and falls up and down when the blower comes on. Any suggestions on how to remedy the issue? Thank you!
the only reason my rating isn't higher is that i didn't get the filter i ordered. it was the right size but not the correct merv rating. i said i would use the filter but just wanted you to know what happened. a refund for the price difference was promised. the filter fit fine. this is my first filter from your company and if it performs well it won't be the last.
I didn't see the "actual size" dimension before I bought 4 of these filters (a years supply). My filter section takes a full sized 20"x25"x4" filter, these are 5/8" small in the length and width directions an 3/8" shorter. While they do fit in the section they are very loose. While the filter quality appears good, I can't help but think there is air passing through my HVAC system around the filter in stead of through it.