Review on FilterBuy 14X24X1 Pleated Furnace Filters Filtration for HVAC Filtration by Nick Narvasa

Definitely cheaper than a filter but the main problem is they are almost 3/4 INCH SHORT on both sides. They measure 13.375" x 23.375" x 1" (13 3/8 x 23 3/8 x 1). The size is listed on the bottom of the filter, but nowhere else is it smaller than the listed size. I have learned that MERV 13 is said to be equivalent to Filtrete (1500-1900 MPR) PROBLEM: This cheap smaller filter doesn't stay in the area where the filter needs to be pushed in hard, causing the filter to rest against a grille that opens and closes Replace the Filter.This filter can't really filter all of the air going to the attic fan because it doesn't even cover the opening that goes to the fan (13.25" x 23.5"). an inch or two up where it "should" be; but it should fit snugly within the installation area. At this point, I'm hoping that when the switch is on, the filter will completely cover the actual opening for the air conditioner. The fan itself. The filter is smaller than this is the hole when the filter is on the side, what doesn't work can be checked, as the filter is simply tested on a grid a few centimeters from the fan. Opening for air conditioning/fan. I bought these because my monthly Filtrete filter order was out of stock. The Filtrete (1900) filter (13.75 x 24 x 1 inch) fits snugly and doesn't move, so I know it filters 100% of the air. Finally let me say that we have 2 air conditioners, upstairs and downstairs, 4 teenagers, 4 cats and a dog. They are all pets and have been cleaned but the filters are so incredibly dirty after 2 months that they are changed very often. These filters can be good if your filter access hole is the size of a smaller filter, but it sucks that it isn't advertised as a much smaller filter.