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The Goodman B1756028L Horizontal Drain Pan is a genuine OEM condensate pan built for ARUF061-00A-1 air handlers installed in the horizontal (attic or crawlspace) orientation. When an air handler lies on its side, the secondary horizontal pan collects condensate that the primary coil pan cannot — a critical safeguard against ceiling and drywall damage in horizontal installs.
Horizontal pans are highly model-specific because they must match the cabinet footprint and drain-port location. Universal aftermarket pans frequently misalign, causing pooling and corrosion. This genuine OEM B1756028L is dimensioned to the factory cabinet, ensures proper drainage flow, and keeps your warranty intact.
Difficulty: Moderate (3/5). Horizontal-orientation swaps usually take 40–60 minutes, often in tight attic spaces. Cut power, remove panels, disconnect the drain line and float switch, slide out the old pan, install the new one with correct slope, and reseal. Verify drain-line pitch before closing up.