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The Goodman B1756028L Horizontal Drain Pan is a genuine OEM condensate pan designed for Goodman ARPF486016AB air handlers installed in the horizontal (attic/crawlspace) orientation. It collects coil condensate along the length of the cabinet and channels it to the drain outlet, protecting against overflow, water damage, and biological growth. Horizontal installs are especially vulnerable to slow leaks, so a sound OEM pan is critical.
OEM pans replicate the factory length, drain-fitting position, and slope required for horizontal drainage. Generic pans often pool water at the wrong end and leak. This direct-fit part slopes correctly toward the outlet for trouble-free condensate removal.
Difficulty: Moderate (3/5). Requires sliding out the coil assembly to position the pan and reattach the drain line. Plan 45–60 minutes. Verify proper slope toward the drain and cut power before servicing.