DuraVent FasNSeal Flex 7" x 135' Stainless Steel Custom Flex Length w28.13 Magnetic catch keeps the doors

Magnetic catch keeps the doors firmly closed

Assembled Dimensions:  48" L x 38" W x 24" H

This pre-insulated liner features spiral wrap insulation

Use to seal top of masonry chimney and support the flex

The American Fyre Designs 65" Petite Cordova Outdoor Gas Fireplace is a smaller version of the classic Cordova fireplace

DuraVent FasNSeal Flex 7" x 135' Stainless Steel Custom Flex Length w28.13 Magnetic catch keeps the doorsMade from super ferritic stainless steel. Corrosion resistant. Manufactured with a sure seal locking seam for superior strength and flexibility. The smooth inner wall provides for no output reduction, allowing for full appliance efficiency, ease of cleaning and regular maintenance. The smooth inner wall optimizes gas flow, minimizes back pressure, and facilitates condensate management. Only flexible chimney liner listed to UL 1738 standard. What's