“Dalsin Line”® Aluminum Flex Liners are used for venting category 1 heating appliances or direct vent appliances into a masonry chimney. Manufactured using Type 3003 aluminum, this heavy-duty 2-ply liner is made from two strips of .005″, high-grade aluminum for a total thickness of .010”
What’s Included
- 4″ x 4″ VCL Termination Cap
- 13″ x 13″ Stainless Steel Black Base


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