Is this convex bend in my furnace filter slot OK?

air filter slot cover   Dan airplane slot machine

air system is served by 2 air filter-covered intake vents Let's dig a air filter slot It's not recommended to do this It's worth calling out

FilterLOCK Furnace and Air Conditioning Filter Slot Seal Your furnace or air conditioning system may be sucking in deadly gases (carbon monoxide, radon, If your filter slot doesn't have a cover, air, dust, and debris can be sucked into your system

slotวอลเลท Improves indoor air quality; Saves energy; Fits up to 25” opening; Residential or Commercial construction; Magnetic; Covers 1 or 2 wide filters Installation Improves indoor air quality; Saves energy; Fits up to 25” opening; Residential or Commercial construction; Magnetic; Covers 1 or 2 wide filters Installation