The DuraVent 15' DuraFlex 304 Stainless Steel Basic Kit is a dependable chimney liner kit designed for efficient masonry chimney relining in residential heating applications. Featuring a 15-foot flexible 304 stainless steel chimney liner, this kit is ideal for wood-burning fireplaces, wood stoves, non-condensing gas appliances, and oil-fired heating systems with minimal chimney offsets. Its lightweight, flexible construction simplifies installation while delivering reliable venting performance. Manufactured for durability and corrosion resistance, the DuraFlex 304 system is UL 1777 and ULC S635 listed, ensuring trusted safety and code compliance.

Designed for professional chimney restoration and venting upgrades, the DuraFlex 304 Basic Kit helps improve flue gas flow while protecting masonry chimneys from heat, moisture, and corrosive byproducts. The flexible liner conforms easily to existing chimney structures, making it an excellent solution for relining older chimneys without extensive modifications. Whether upgrading a fireplace insert, furnace, boiler, or oil appliance, this stainless steel chimney liner kit delivers long-lasting performance, installation convenience, and dependable efficiency.

• DuraVent 15' DuraFlex 304 Stainless Steel Basic Kit: Complete chimney liner kit designed for reliable masonry chimney relining in residential and light commercial heating systems.
• Premium 304 Stainless Steel Chimney Liner: Manufactured from 304 stainless steel for outstanding corrosion resistance, durability, and long-lasting venting performance.
• 15-Foot Flexible Chimney Liner: Includes a 15-foot flexible chimney liner that simplifies installation in chimneys with minimal offsets while maintaining efficient flue gas flow.
• Multiple Diameter Options: Available in 3", 4", 5", 6", 7", and 8" diameters to accommodate a wide range of wood stoves, fireplaces, furnaces, boilers, and oil heating appliances.
• Various Length Configurations: Offered in 15', 20', 25', 30', and 35' lengths for different chimney heights and installation requirements.
• Compatible with Wood, Gas & Oil Appliances: Designed for wood-burning, non-condensing gas, and oil-fired appliances, providing dependable chimney venting performance.
• Ideal for Chimney Restoration Projects: Helps improve draft efficiency, protect masonry chimneys, and extend the life of existing chimney systems.
• UL Listed Chimney Liner System: Part of the DuraVent DuraFlex 304 product line, UL 1777 and ULC S635 listed for trusted safety and code compliance.