OEM Goodman 23 x 20 in Vertical Drain Pan for ARPF374316BA — B1756020L

The Goodman B1756020L Vertical Drain Pan is the factory-original condensate collection pan engineered for ARPF374316BA air handlers and compatible Goodman/Amana vertical-configuration units. When the original pan cracks, corrodes, or no longer seats correctly, this OEM replacement restores proper condensate drainage and prevents water damage to the cabinet, ductwork, and surrounding finishes.

Measuring 23 x 20 inches, the pan is molded to the exact contour of the coil so it captures runoff cleanly and channels it to the primary drain connection without pooling or overflow.

• Part number: B1756020L
• Orientation: Vertical air handler install
• Dimensions: 23 in x 20 in (OD)
• Material: Corrosion-resistant molded pan
• Fits: Goodman ARPF374316BA and compatible models

OEM vs. Generic

This is a genuine OEM Goodman pan, dimensionally matched to the coil and drain fittings so it drops in without trimming or sealant gymnastics. Generic universal pans are cheaper up front but frequently sit too high or low, leaving gaps that cause nuisance overflow and float-switch trips. For a leak-free seal, OEM is the safe choice.

Installation Difficulty

Moderate. Requires shutting down the unit, disconnecting the condensate line, and removing the coil assembly to swap the pan. Most HVAC techs complete it in under an hour; DIYers should be comfortable working around the evaporator coil.