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The Goodman M0570808 Button Plug is a genuine OEM component for the AMEC961005CNAC gas furnace. This snap-in plug seals unused knockout and access holes in the furnace cabinet or blower deck, blocking air leaks and keeping the airflow path sealed as designed. Missing plugs let return air bypass the blower and can affect static pressure and efficiency, so replacing lost or damaged plugs helps the furnace run as engineered.
This OEM Goodman button plug matches the exact knockout diameter for a positive snap-in fit. Generic plugs are often slightly under- or oversized and either fall out or won't seat, leaving an air-leak path. The OEM plug seats flush and stays put.
Very Easy (1/5). Align the plug with the open hole and press until it snaps flush with the panel — no tools required. Under 1 minute per plug. Confirm all unused holes are plugged for proper airflow.