Weil McLain 383-500-657 4" Flue Outlet Pipe Adapter

The Weil McLain 383-500-657 Flue Outlet Pipe Adapter operates as 4" diameter HVAC systems component that connects flue piping to specific Evergreen and Ultra Series boilers. This product provides safe combustion gas exhaust functionality by connecting the boiler to the exhaust system. The adapter provides a correct size fit that stops leakage while permitting proper airflow it promotes system operational excellence and product durability. This adapter works for residential and light commercial heating systems because it makes installation easier while upholding venting standards. The adapter works to improve boiler performance while stopping gas backflow and it helps create safer indoor air quality.