Does this coil include the housing or plug

While it provides a Physical barrier against snow and ice accumulation

verify the individual packing list for your specific furnace series

Built with a robust ASTM B584 bronze body and a silicone seat

Constructed from reinforced steel

Trane ADP1053 Adapter 321702-401 Does this coil include theThe Trane ADP1053 Adapter (also identified by factory part number ADP01053) is a critical OEM replacement part engineered for high efficiency flue management in Trane and American Standard residential systems. As a veteran technician knows, maintaining the integrity of the flue connector is non negotiable for safe combustion venting. This 3 inch plastic adapter is designed with a perforated air diffuser to stabilize airflow within the venting