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The Goodman B1756021L Horizontal Drain Pan is a genuine OEM condensate pan engineered for the Goodman ARPF18241BA air handler installed in the horizontal position. It captures evaporator coil condensate and directs it to the drain connection, protecting attic and crawlspace installations from overflow and water damage.
The OEM B1756021L is molded for horizontal airflow with the drain port positioned for gravity flow to the trap. Generic substitutes often lack the correct pitch, allowing standing water that breeds mold and risks overflow in hard-to-reach attic installs. OEM ensures reliable drainage and a clean install.
Moderate — requires sliding out the coil to position the pan and reconnect the horizontal drain line. Best handled by an HVAC technician. Confirm proper slope and pour-test the drain before closing up; disconnect power before servicing.