Is this convex bend in my furnace filter slot OK?

Multiple return registers: Look for an air handler with a slot and removable cover where the filter sits Remember: If you're unsure or have

Shop around on the internet for the filters, and buy them by the case You will Never put more than one filter in a filter slot I have overheard

airpods case with airtag slot HVAC filters are often located in a slot next to your furnace or air handler cover to get at the filter, but often you won't

airport slot machines FilterLock Filter Slot Seal – Seal Cover for Any 1” Furnace Filter, Up To 25” Long · 4 out of 5 stars