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The Goodman M0570808 is a genuine snap-in button plug for the AMEC960302BNAB 96% AFUE gas furnace and compatible Goodman/Amana models. Button plugs fill unused knockouts and mounting holes in the furnace cabinet, blower deck, or control panel — blocking air bypass, keeping out debris, and preserving the sealed-combustion envelope this high-efficiency furnace depends on. It gives a finished, factory-correct appearance wherever a hole is left open after service or optional-accessory removal.
Generic plugs from a hardware assortment often fit loosely and pop out under blower pressure, allowing air leakage that hurts efficiency on a condensing furnace. The OEM M0570808 is sized to the exact knockout for a tight, permanent snap-fit that stays put.
Easy (1/5). Push the plug into the open hole until the retaining lip snaps flush — no tools required. A fast, low-risk fix for any homeowner or technician.
Verify your model before ordering; questions to info@nationalhvacparts.com.