DuraVent DuraFlex SW 4" x 160' Stainless Steel Custom Length l35.5 and a wall thimble

and a wall thimble

Tested and Listed to UL641

This beautiful piece of cast iron is designed to add traditional elegance to the front of your gas fireplace setup

This foundry-casting technique results in sturdy yet beautiful fixtures that will deliver warmth and beauty to your home or outdoor living area for many years

DuraVent DuraFlex SW 4" x 160' Stainless Steel Custom Length l35.5 and a wall thimbleDuraFlex SW is a smooth inner wall, flexible stainless steel chimney liner. The smooth inner wall provides for no output reduction allowing for full appliance efficiency. Smooth wall construction eliminates ridges that restrict flue gas flow and collect deposits. The lack of ridges facilitates cleaning and maintenance. DuraFlex SW is ideal for relining masonry chimney for wood and gas burning appliances. Listed to UL 1777. What's Included Length