Selkirk 3EFC3 3-Foot Expandable Gas Vent Flex Connector, 3-Inch Diameter, 174036

The Selkirk 3EFC3 3-Foot Expandable Gas Vent Flex Connector is a reliable, high-performance solution designed specifically for venting gas-fired appliances equipped with draft hoods, as well as other appliances listed for use with Type B gas vent systems. With a 3-inch diameter and the ability to expand from 2 feet to a full 3.5 feet in length, this flexible connector is engineered to simplify installations by eliminating the need for elbows and rigid pipe adjustments. It provides a direct, easy-to-use connection between the appliance and Selkirk’s Type B gas vent, making it an ideal choice for both new installations and retrofit applications.

Constructed as a single-wall, galvanized steel flex connector, the 3EFC3 offers durability and dependable performance, even in demanding environments. Its sleek, reflective finish enhances its visual appeal while maintaining strength and corrosion resistance. The connector is UL listed for safety and requires only a 1-inch minimum airspace clearance to combustibles, meeting stringent safety standards. Its flexibility makes it especially useful in tight or complex venting layouts, allowing installers to save time and reduce labor costs on the jobsite.

Common applications include residential warm air furnaces, tank water heaters, boilers, and other gas-fired Category I natural draft appliances. Whether used for single appliance venting or in combined venting systems, the Selkirk 3EFC3 delivers a versatile and efficient solution. With its galvanized ends, it ensures a secure and reliable connection every time, making it a trusted component for professionals and homeowners alike.

• Expands from 2 to 3.5 feet, simplifying vent installations by eliminating the need for elbows and rigid pipe sections
• Made from single-wall galvanized steel with a sleek, reflective finish for strength, corrosion resistance, and a clean appearance
• Ideal for gas-fired Category I appliances including furnaces, boilers, tank water heaters, and more—works with single or combined venting systems
• Galvanized ends provide secure connections, and the flexible design saves time and effort on the jobsite
• Selkirk has led HVAC innovation with durable, efficient, UL-tested products engineered to exceed safety standards
• Size: 3-Inches
• Color: Silver
• Dimensions (L x W x H): 22.60 x 4.47 x 4.47 inches
• Weight: 1.40 pounds

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