BDM Dalsin Line 4" x 35ft Pro-Form Aluminum Flex with Ends h87.5 It is a perfect fit

It is a perfect fit for new and retrofit heaters alike

The Large Hearth set is composed using hand-forged iron from massive round bar stock

enhancing user convenience and safety

The Napoleon Ducted Heat Management 8" Flex Venting Kit is an essential upgrade for maximizing the efficiency of your fireplace

UL 641 Material Stainless Steel Inner Diameter 3" Height/Length 60" Color Silver Warranty

BDM Dalsin Line 4" x 35ft Pro-Form Aluminum Flex with Ends h87.5 It is a perfect fit"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