OEM Goodman 23 x 20 in Vertical Drain Pan for ADPF304216BA — B1756020L

Stop condensate leaks and water damage with the genuine Goodman B1756020L vertical drain pan, a 23 x 20 inch OD OEM condensate pan built for ADPF304216BA air handlers. Designed to catch and channel condensate away from the coil in vertical (upflow/downflow) installations, this replacement pan corrects cracked, warped, or rusted-through originals that drip onto ceilings, floors, and equipment.

Specifications

• Dimensions: 23 x 20 in (outside diameter)
• Orientation: Vertical air-handler configuration
• Function: Primary condensate collection pan
• Fits: Goodman ADPF304216BA air handler / coil
• Part Number: B1756020L

OEM vs. Generic

The genuine Goodman pan matches the coil footprint, drain-port location, and mounting tabs precisely, so it seats flat and drains completely. Universal pans often misalign the drain connection or leave low spots where water pools and breeds algae, leading to overflow and float-switch trips. OEM gives a leak-tight, full-drainage fit.

Install Difficulty

Moderate — 30–60 minutes. The coil section typically must be opened to swap the pan; clear the drain line, transfer the drain fitting, seat the new pan level, and pour-test the drain before closing up. Confirm a free-flowing trap to prevent overflow.