Explore top-quality Z-Flex chimney liners at F.W. Webb. A chimney liner creates a barrier in a fireplace, wood stove, or gas-fired heating appliance to minimize heat loss and protect against fire hazards. Our selection of Z-Flex products includes chimney connector kits and extension liners made in durable stainless steel or aluminum to stand up to normal everyday use of the system. Browse an assortment of Z-Flex chimney liners to find the right fit for a new or existing model.