BDM Dalsin Line Pro-Form 5" x 25ft Aluminum Flex Only 17in Selkirk 5" x 8" Firestop

Selkirk 5" x 8" Firestop Spacer

15-3/8" [391mm] Q

Note: In situations where Oil or Coal is burned

we highly recommend our black diamond luster zircon fire glass

Build-in adjustable capillary thermostat 32-130F with Bypass switch

BDM Dalsin Line Pro-Form 5" x 25ft Aluminum Flex Only 17in Selkirk 5" x 8" Firestop"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 5" x 25ft Aluminum Flex Only Features Liner is made from 2 ply of . 005 thick type 3003 aluminum strip Components are made from . 020 thick type 3003