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The genuine Goodman M0570808 Button Plug is a factory-original sealing plug designed for the Goodman ACVC960603BNBA 96% AFUE two-stage variable-speed gas furnace. It snaps into unused knockouts and wiring access holes in the furnace cabinet, blower deck, and control panels to maintain a sealed combustion and air-handling envelope. A missing or broken plug allows air leakage and noise, which can reduce blower efficiency and pull in dust or pests.
This is the genuine Goodman OEM plug, molded to the exact diameter and snap-tab profile of the factory opening for a flush, rattle-free fit. Generic universal plugs are often slightly oversized or undersized and can pop loose under blower vibration. For a clean, permanent seal we recommend the OEM part.
Very Easy (1/5). No tools required — simply press the plug into the open hole until the tabs seat. Always switch the furnace off at the service disconnect before opening any panel. Typical install time: under one minute.