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The Goodman M0570808 Button Plug is a genuine OEM snap-in cabinet plug used to seal unused knockout and access holes on the AMVM971005CNAA modulating furnace and other compatible Goodman and Amana units. Proper sealing of open knockouts is important for correct airflow, combustion-air management, and cabinet integrity — an open hole can create nuisance air leaks, whistling, and efficiency loss. This factory plug snaps securely into standard punched openings for a clean, finished panel.
The OEM M0570808 is sized to the exact factory knockout diameter so it seats flush and stays put. Generic plugs frequently run undersized or over-flexible and pop loose over time. Genuine parts guarantee a proper, lasting seal.
Easy (1/5). Push the plug into the open knockout until it snaps flush — no tools needed. De-energize the furnace before opening any panels.