Selkirk 3" to 8" B Vent Adapter (Flexi-Liner) Size:8-Inch and maintain the longevity of

and maintain the longevity of the heaters

the DRT35ST Series gas direct vent fireplace fits right in without taking up additional floor space

weighing 24 pounds

Lava Rock as a Base 15 lbs

Selkirk 3" to 8" B Vent Adapter (Flexi-Liner) Size:8-Inch and maintain the longevity ofSelkirk 3" to 8" B Vent Adapter Adapter to transition from all brands of Listed Type B Gas Vent to Flexi Liner. Aluminum Flexible Liner Flexi Liner system is designed for relining existing masonry or listed factory built chimneys and vents serving Category I for natural gas or propane fired appliances. 3" to 8" Diameters: 3000 series aluminum, 2 ply Maximum flue gas temperature 470F 3" 8" diameter kits available in 25' and 35' lengths 3" 5" diameter