IMAGE COMING SOON
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The Goodman 20201901 is a genuine OEM condensate drain hose/tube for the GKS91155DXAE high-efficiency gas furnace. This flexible tube routes acidic combustion condensate between the collector box, drain trap, and outlet line. Over time, factory drain hoses can crack, harden, kink, or clog with scale and biofilm — leading to water leaks, pressure-switch faults, and intermittent no-heat shutdowns. Replacing a degraded hose restores reliable drainage and prevents water damage around the furnace.
The OEM 20201901 is pre-cut to the correct length with the proper inner diameter to seat tightly on your furnace's hose barbs. Generic tubing cut to size may slip, kink, or leak at the connections. OEM ensures a leak-free, exact fit and protects your warranty.
Easy. A straightforward 15–20 minute swap: shut off power, slide off the old hose, and press the replacement onto the barbed fittings. No tools or adhesives required in most cases. Verify the routing has no dips that could trap water.
Ships fast and backed by our exact-fit guarantee.