Hope someone can help. We just had a Trane XV80 furnace installed and would like to use a good filter. However the measurement is not standard. It is 24x25x1. In our previous Trane furnace we used 3M Filtrete Ultra Allergen 1250. In a call to 3M today, they are not making custom filters any longer. Anybody have any ideas?? Right now we took a 24x24x1 filter and placed it in the filter holder and taped the extra opening with some tape but not sure if the blower will try to pull it off? may not be a good idea?

What do we do?

Thanks

Katie1289