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The Goodman B1756028L Horizontal Drain Pan is a genuine OEM condensate pan built for horizontal-flow installations of the AEPF426016BB air handler. In attic, crawlspace, and horizontal closet setups, this pan captures coil condensate and routes it safely to the drain, preventing ceiling stains, mold, and water damage.
Horizontal pans are highly geometry-specific — coil slope, length, and drain-port location must match exactly. This OEM B1756028L drops in with no modification, ensuring proper pitch toward the drain. Generic substitutes frequently sit flat or short, causing condensate pooling and overflow. We recommend OEM for horizontal applications.
Moderate to Advanced. Horizontal access is tight; you'll slide the coil to swap the pan and re-verify drain pitch. Plan on 60–90 minutes and check the secondary/float switch on completion.