Sloppy wide furnace filter slot

Furnace Filters And Health furnace filter slot I wish filters 34 thick would fit into my furnace filter slot but they don't even though the original filters that were in the slot in our new home furnace filter slot I just had the air intake on my furnace expanded, but they didn't update the filter slot Is it acceptable for a forced air furnace filter to

mantul slot 4d Furnace filter slot cover that is an easy fix to HVAC air leaks Here's the link to AllergyZone