Size advertised vs actual size WAY off…
Be very careful when buying from this company and absolutely triple chech the ACTUAL size of their filters. I bought a six pack of 12x24x1. When used, the filter actually slipped past the sheet metal guides and was literally falling into the blower area. Reason was due to the fact that what they advertised as 12” width was only 11-3/8” as compared to the normal 11-3/4” other manufacturers build to. As I bought these six months in advance of use I’m out on the cost of these and just need to chuck them. BUYER BEWARE