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The Goodman M0570808 Button Plug is a genuine OEM snap-in closure used to seal unused knockout holes and access openings on the VMES960603BNAA gas furnace cabinet and compatible Goodman/Amana models. Properly plugged openings maintain the sealed-cabinet integrity required for correct combustion-air draw and safe blower operation. A missing plug allows conditioned air leakage and can disturb the pressure switch's reference reading.
The OEM Goodman M0570808 is molded to the precise knockout diameter of Goodman sheet-metal cabinets, giving a tight, rattle-free seat. Universal plugs frequently sit loose or fall out under blower vibration. For a lasting seal, the factory part is the right call.
Easy (1/5) — Fully tool-free. Align the plug over the open knockout and press until the retaining lip snaps into place. Under two minutes with the power off.
Ships same or next business day. Fitment questions welcome at info@nationalhvacparts.com.