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The Goodman 20201802 is a genuine OEM condensate drain hose tube for the Goodman GCH950453BXAC high-efficiency gas furnace and compatible models. This pre-formed hose carries acidic condensate between the secondary heat exchanger, drain trap, and pressure-switch tubing inside the furnace cabinet. Over time factory hoses harden, crack, or become brittle from constant exposure to condensate — leading to drips, water pooling, and intermittent pressure-switch lockouts. Replacing a failing hose with the correct OEM length and bend keeps the drain path sealed and correctly pitched.
OEM (recommended): Correct inner diameter, length, and pre-formed bend for a clean, leak-free routing. Generic: Bulk tubing can substitute but must be cut and shaped to match — risking kinks and improper pitch.
Very Easy — 1 of 5. Cut power, slide the old hose off its barbs, press the new hose fully onto the fittings, and confirm a snug, kink-free run. Typically under 10 minutes.