BDM Dalsin Line 4" x 10ft Pro-Form Aluminum Flex Extension h43.375 Patented design of the intelligent

Patented design of the intelligent air control mechanism

Depth 14" Valve Vanisher Front Width 34

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Fire by Design 12" Polished Brass Key

sophisticated lines and balanced brass accents for a stylish upgrade to your fireplace

BDM Dalsin Line 4" x 10ft Pro-Form Aluminum Flex Extension h43.375 Patented design of the intelligent"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" Features Liner is made from 2 ply of . 005" thick type 3003 aluminum strip Components are made from . 020 thick type 3003 aluminum Locking seam on liner is the