DuraVent 20' Flex Pipe Length DuraFlex 316 Stainless Steel Tee Kit

The DuraVent 20' DuraFlex 316 Stainless Steel Tee Kit is a high-performance flexible chimney liner system designed for dependable masonry chimney relining and efficient venting. Manufactured from premium 316 stainless steel, this 20-foot chimney liner tee kit delivers superior corrosion resistance for wood-burning fireplaces, wood stoves, non-condensing gas appliances, oil-fired systems, and coal-burning applications. The flexible liner design allows easier installation through chimneys with minimal offsets, while the integrated tee provides a secure connection and convenient cleanout access. The DuraFlex 316 system is UL 1777 and ULC S635 listed for safe, code-compliant performance.

Engineered for long-term durability, the DuraFlex 316 stainless steel chimney liner kit helps improve chimney draft, enhance flue gas flow, and protect masonry chimneys from heat and corrosive combustion byproducts. This 20-foot flexible chimney liner tee kit is ideal for fireplace inserts, furnaces, boilers, and solid-fuel heating systems, providing a reliable chimney restoration solution. Backed by DuraVent’s trusted engineering, it offers professional-grade performance for residential and commercial venting applications.

Features

• DuraVent 20' DuraFlex 316 Stainless Steel Tee Kit: Complete 20-foot flexible chimney liner tee kit designed for reliable masonry chimney relining and high-performance venting applications.
• Premium 316 Stainless Steel Construction: Built with durable 316 stainless steel alloy for superior corrosion resistance, strength, and long-lasting protection against harsh flue conditions.
• Integrated Tee & Cleanout Design: Features a secure stainless steel tee connection that simplifies installation and provides convenient access for chimney cleaning and maintenance.
• Available in Multiple Diameter Sizes: Offered in 3" to 8" diameters to fit various wood stoves, fireplace inserts, fireplaces, furnaces, boilers, and oil appliances.
• Multiple Flex Length Options: Available in 15’, 20’, 25’, 30’, and 35’ lengths to accommodate different chimney heights and installation needs.
• Flexible Chimney Liner System: Easily adapts to chimney pathways with minimal offsets, making installation faster while maintaining efficient flue gas flow and proper draft.
• Compatible with Solid Fuel, Gas & Oil Appliances: Designed for solid-fuel, non-condensing gas, and oil-fired appliances, providing a versatile venting solution.
• Enhanced Corrosion Resistance: The 316 stainless steel chimney liner provides added protection for demanding applications, including coal-burning appliances and sulfur-rich fuel environments.
• Improves Chimney Performance: Helps restore chimney efficiency, protect masonry flues, and support safe operation of heating appliances.
• UL Listed DuraFlex 316 Series: Engineered for safe, code-compliant chimney liner replacement and fireplace insert venting installations with trusted DuraVent quality.

Specifications

Downloads

• Product Catalog
• Instruction Manual