636-663

This 2-inch x 25-foot flexible vent length provides a reliable and efficient solution for venting high-efficiency condensing appliances. Designed for use with modern boilers, furnaces, and water heaters, this flexible liner allows for easy routing through existing chimneys or tight structural spaces where rigid piping is impractical. The 25-foot length offers ample reach for vertical or horizontal runs, ensuring a safe and secure exhaust path for combustion gases. Its durable construction is specifically engineered to withstand the corrosive acidic condensate produced by high-efficiency heating systems, making it a critical component for maintaining safe HVAC operation and indoor air quality.
Type: Flexible Exhaust Venting
Size: 2 Inch
Dimensions: 25 ft × 2 in × 2 in
Application: Used for venting high-efficiency gas appliances such as condensing furnaces, boilers, and tankless water heaters. Ideal for chimney relining and complex exhaust routing applications.
Specifications: 2-inch nominal diameter, 25-foot continuous length, flexible design for easy installation, engineered for high-efficiency appliance exhaust.