Field Controls 46198901 4" Barometric Draft Control for Gas Applications

The Field Controls 46198901 MG1 is a 4-inch barometric draft control designed specifically for gas-fired heating appliances. This essential component automatically regulates draft pressure in the vent system, ensuring optimal combustion efficiency and safe operation of your gas furnace, boiler, or water heater.

Key Features:

• 4-inch diameter vent connection for standard residential gas appliances
• Barometric damper design maintains consistent draft pressure regardless of weather conditions
• Prevents excessive draft that can waste energy and reduce efficiency
• Protects against backdrafting and spillage of combustion gases
• Durable construction with weighted damper gate for reliable operation
• Easy installation into existing vent pipe systems
• Suitable for natural gas and LP gas applications

This draft control helps maintain the proper over-fire draft required by gas heating equipment, improving fuel efficiency while ensuring safe venting of combustion byproducts. The MG1 series is engineered for long-term reliability in residential and light commercial installations.