Trane PAN4391 Drain Pan 318973-401 Simplified Service: The clear tube

Simplified Service: The clear tube design and threaded unions allow for 30-second visual checks and mess-free media replenishment

Direct OEM interchange for legacy Barber Colman M584-0211 and M584-211 models

while this is a natural gas valve

Key Benefits Precise Thermal Calibration: Fixed 150°F open and 110°F close settings ensure accurate furnace high-limit protection

Vibration Dampening: Precision threading helps maintain torque and prevents loosening during high-static operation

Trane PAN4391 Drain Pan 318973-401 Simplified Service: The clear tubeThe Trane PAN4391 Horizontal Drain Pan is an OEM replacement condensate pan designed for compatible Trane HVAC equipment installed in a horizontal configuration. The PAN4391 collects condensate produced at the evaporator coil and directs it toward the system drain connection, helping prevent standing water and overflow around the air handler. The PAN4391 is also a replacement for Trane PAN3423 PAN03423. This Trane condensate drain pan should be