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u/Extension-Low-9855

Image 1 — How do I replace these rectangle things and is this mold?
Image 2 — How do I replace these rectangle things and is this mold?
Image 3 — How do I replace these rectangle things and is this mold?
Image 4 — How do I replace these rectangle things and is this mold?
Image 5 — How do I replace these rectangle things and is this mold?
▲ 1 r/hvacadvice

How do I replace these rectangle things and is this mold?

I just took the vents off and the square boxes where the vents go looks really dirty and musty smelling. Also, the vent with the oval opening looks really dirty inside the duct. Is it mold?

u/Extension-Low-9855 — 6 days ago