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The Goodman M0570808 Button Plug is a genuine OEM snap-in hole plug for the AMVM970803BNBA modulating gas furnace. It seals unused cabinet knockouts, wiring pass-throughs, and access openings so conditioned and combustion air stay where they belong. Missing button plugs create air leaks that hurt efficiency and can pull dust or affect burner-compartment pressure.
The OEM plug matches Goodman's exact knockout diameter and locking-flange design, so it snaps in flush and stays put. Universal plugs often fit loosely or pop out over time. For a clean, secure seal, the OEM part is the right fit.
Easy — push into the open hole until the flange snaps flush. No tools needed, under 5 minutes. De-energize the furnace before working inside the cabinet.