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The Goodman M0570808 is the OEM button plug for the Amana/Goodman AMSS961005CNAA 96% AFUE gas furnace. It snaps into unused knockouts and access holes in the furnace cabinet or panels, keeping the enclosure sealed against air leakage and debris. In a sealed-combustion furnace, closing off unused openings helps maintain the correct cabinet pressure and airflow the control system relies on.
The genuine OEM Goodman plug is sized to the exact knockout diameter of your furnace panels for a flush, secure snap-in fit. Generic plugs are frequently the wrong size, sit loose, or pop out — leaving a hole that undermines cabinet sealing. The correct OEM part guarantees a clean, lasting seal.
Very Easy (1/5). Press the plug into the open knockout by hand until it snaps flush. No tools and under a minute of work.