Weil-mclain 672619115569 5 Inch Automatic Vent for Cga-4 Eg CG-4 Cgx-4 Series Boiler

Product Description

The Weil-McLain 672619115569 is a 5 inch automatic vent designed for use with Weil-McLain CGa-4, EG, CG-4, and CGx-4 series boilers. This vent component plays a critical role in the safe and efficient operation of hot water and steam heating systems. Automatic vents are installed in hydronic heating systems to release trapped air from the system without manual intervention. Air pockets in a boiler loop reduce heat transfer efficiency and can cause noise, uneven heating, and long-term damage to the system. By automatically purging air, this vent keeps water flowing freely through the system and helps maintain consistent performance. HVAC technicians and boiler service professionals rely on properly rated automatic vents to keep residential and light commercial heating systems running at peak output. The 5 inch diameter of this vent matches the flue and venting specifications of compatible Weil-McLain boiler models, making it a direct-fit replacement part. Using the correct diameter vent is essential for maintaining proper draft, combustion efficiency, and safe exhaust of flue gases. Weil-McLain is a well-established manufacturer of cast iron and steel boilers used widely across the Northeast and Midwest United States. Their replacement parts are built to match original equipment specifications, which reduces installation time and callbacks. This automatic vent is the correct replacement for technicians servicing CGa-4, EG, CG-4, and CGx-4 boiler units in the field. Whether you are completing a scheduled maintenance visit or responding to a service call, having the right vent size on hand ensures the job gets done right the first time. This part is also referenced under Weil-McLain part number 381-800-475.

• 5 inch diameter automatic vent for precise fit on compatible Weil-McLain boiler models
• Compatible with CGa-4, EG, CG-4, and CGx-4 series Weil-McLain boilers
• Automatic air release design eliminates manual venting and supports efficient hydronic system operation

Product Highlights

The Weil-McLain 672619115569 automatic vent is a direct-fit replacement part for CGa-4, EG, CG-4, and CGx-4 series boilers, delivering reliable air elimination and proper venting in a 5 inch diameter configuration.

Product Information

Standard Information

• Brand: WEIL-MCLAIN
• Manufacturer Part Number: 672619115569

Technical Specifications

• Diameter: 5 inches
• Compatible Boiler Series: CGa-4, EG, CG-4, CGx-4
• Reference Part Number: 381-800-475