7" x 35' Gas Liner Kit

Z-Flex 7" x 35' Gas Liner Kit – Complete UL-Listed Venting Solution

The Z-Flex 7" x 35' Gas Liner Kit is engineered for use with Category I natural draft gas-fired appliances and gas fireplaces. Constructed from 2-ply dead soft aluminum, this liner system is designed to provide safe venting, long-term durability, and simplified installation for professional HVAC and plumbing contractors.

Key Advantages

• Full Kit Supplied: Includes 35 feet of 7-inch liner, chimney flashing, rain cap, mortar collar, and installation hardware for a complete system.
• Triple-Lock Seam: Provides an airtight, leak-resistant connection for reliable venting performance.
• Flexible Design: Deep corrugations allow for adaptability around offsets and tight spaces without compromising structural integrity.
• Durability: Corrosion-resistant aluminum construction ensures long service life under demanding conditions.
• Weather Protection: Supplied cap design prevents water, wind, and debris infiltration, reducing maintenance needs.

Technical Specifications

• Liner Diameter: 7 inches
• Liner Length: 35 feet
• Material: 2-ply aluminum
• Certification: UL listed for Category I appliances
• Applications: Gas-fired furnaces, boilers, and fireplaces requiring chimney relining

Installation Notes

Although this kit is manufactured for straightforward assembly, professional installation is recommended. Proper sizing, securing, and sealing are essential to ensure compliance with local codes and to maintain safe draft conditions. Installers should use appropriate sheet metal tools, sealants, and fasteners to complete the installation.

For Contractors and System Installers

This Z-Flex liner kit provides the reliability contractors demand on job sites, reducing installation time while meeting code requirements. The included components eliminate the need to source parts separately, streamlining workflow and ensuring consistent results.

Summary

The Z-Flex 7" x 35' Gas Liner Kit offers a complete, code-compliant venting solution with durable construction and proven performance. Built for professional use, it delivers dependable draft management for gas-fired heating equipment and ensures long-lasting operation.