How can I fix this furnace filter slot to prevent filters bending?

furnace filter slot   Dan furnace filter slot

one with at least a Minimum Efficiency Reporting Value 13 rating, or as high a rating as your system fan & filter slot can accommodate

Patented two-piece system designed for use with 1-inch air filters; Eliminates air leakage at the filter slotdoor to improve indoor air quality 1 Fabricate and install a filter media box on site · 2 Slide the filter into the slot and place the filter access panel cover over the opening · 3 Complete

liselund slot restaurant New furnace won't come with a 4 filter slot ss120396 said: 04:12 PM The included filter arrangement depends on the specific Contractor's Assistant: Did you check the furnace's filters? I only have the one filter The old one is out but a piece of the cardboard edge