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The Goodman M0570808 is a genuine OEM snap-in button plug used to seal unused knockout and access holes in the sheet-metal cabinet of your furnace. It is a direct-fit component for the AMSS960603BNAA and related Goodman/Amana 96% AFUE gas furnace platforms, keeping conditioned airflow and combustion air paths sealed as the manufacturer intended.
Genuine OEM plugs are sized to the exact factory knockout diameter for a flush, rattle-free seal. Generic universal plugs often sit loose or fall out over time, allowing air leakage. This authentic Goodman part guarantees a correct, lasting fit.
Easy (1/5) — press into the open hole by hand; no tools required. Typical install time under one minute.