5" x 35' Aluminum Liner Kit

Details

Model: 2GACKIT0535
Manufacturer: Z-Flex
Series: Z-Flex Aluminum Gas Venting System
Part Number: 72970
Description: Aluminum Chimney Liner Kit, 5 in. Diameter x 35 ft. Length, for Category I Natural Draft Gas Appliances.

Product Overview

The Z-Flex 2GACKIT0535 Aluminum Gas Liner Kit is a UL-listed venting assembly designed for use with Category I natural draft gas-fired equipment and gas fireplaces. This kit provides a corrosion-resistant, continuous flue liner constructed from flexible aluminum, ensuring proper venting of combustion byproducts in atmospheric and draft-hood-equipped appliances. The system is engineered to maintain draft integrity while preventing exhaust gas leakage and supporting compliance with NFPA 54 and other applicable fuel gas codes. The 35-foot flexible liner simplifies installation through existing masonry chimneys or vent pathways and includes all required termination and connection components for field assembly.

Technical Specifications

• Manufacturer Part Number: 2GACKIT0535
• Alternate Part Number: 72970
• System Type: Aluminum Chimney Liner Kit
• Diameter: 5 inches (nominal)
• Length: 35 feet
• Material: Corrugated aluminum alloy liner
• Listing/Certification: UL Listed for Category I gas appliance venting
• Application: Natural draft gas-fired heating equipment and gas fireplaces
• Compatibility: Category I appliances only
• Excluded Applications: Not for use with Category II, III, or IV appliances or any system producing condensate or corrosive flue gases
• Operating Pressure: Negative draft (non-positive pressure systems)
• Temperature Rating: Suitable for standard natural draft flue gas temperatures
• Standards Compliance: Meets NFPA 54 (National Fuel Gas Code) requirements for natural draft venting
• Included Components: Flexible aluminum liner, top termination, appliance connector, and fasteners
• Installation Method: Flexible liner for retrofit installation through existing chimney systems

Installation Notes

• Intended for use only with Category I natural draft gas appliances.
• Verify appliance input rating and flue sizing per NFPA 54 before installation.
• Do not install in applications that produce condensation or corrosive exhaust.
• Maintain minimum clearances and secure terminations per Z-Flex installation instructions.
• Inspect all connections for continuity and airtight seal prior to system operation.

Summary

The Z-Flex 2GACKIT0535 Aluminum Gas Liner Kit provides a UL-listed, corrosion-resistant venting solution for Category I natural draft gas-fired appliances. Designed for retrofit or new installations, the flexible 5-inch diameter, 35-foot liner delivers dependable draft performance, simplified field installation, and compliance with national fuel gas standards for professional HVAC and mechanical applications.