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The Goodman M0570808 is a genuine OEM button plug for the Amana AMEC960303ANAA gas furnace. This snap-in plug fills unused knockout and access holes in the furnace cabinet or blower deck, blocking air bypass, pests, and debris while preserving the cabinet's rated air seal and combustion-air integrity.
OEM plugs match the exact knockout diameter for a flush, positive snap-fit. Generic plugs may be undersized and fall out or oversized and refuse to seat, leaving gaps that hurt efficiency. The M0570808 restores the factory seal cleanly.
Very Easy (1/5). No tools needed — align and press the plug into the opening until it snaps flush. Takes under a minute. Ensure the hole edge is clean for a secure fit.