This is a 2-pack of MERV 11 air filters. It's new and unopened. I bought them earlier this year for the AC at my old house in another state, but miscommunication happened, and the box got loaded onto the moving truck before I could install one. So now I have this pair of air filters that don't fit anything I have. Maybe they fit something you have?

Here's the Amazon page with more details: https://www.amazon.com/gp/aw/d/B0BVXDDZH7