BDM Dalsin Line 3" /4" x 35ft 2 Pieces Pro-Form Aluminum Flex Only d2.5 Up to 4 extension kits

Up to 4 extension kits can be added to each starter kit

Model Number FLK40GREY

Covers 64-inch diameter footprint

7" x 300" Aluminum Flex

** P4 (EnerGuide) is a measurement of the Canadian Office of Energy Efficiency

BDM Dalsin Line 3" /4" x 35ft 2 Pieces Pro-Form Aluminum Flex Only d2.5 Up to 4 extension kits"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