BDM Dalsin Line Pro-Form 3" x 4" 2PCS 30ft Aluminum Insulated Flex Kit With Black High Wind Cap/Square Base w54.25 Made of UV-resistant polypropylene

Made of UV-resistant polypropylene

The sloping angles shed water where other covers sink-in with pools of water

Produces 70

Ceramic Black Tie

BDM Dalsin Line Pro-Form 3" x 4" 2PCS 30ft Aluminum Insulated Flex Kit With Black High Wind Cap/Square Base w54.25 Made of UV-resistant polypropylene"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 3" x 4" Insulated Kit Black High Wind Chimney Cap Square Base 2Pcs 30ft Aluminum Flex Features Liner is made from 2 ply of . 005 thick type 3003