DuraVent FasNSeal Flex 7" x 40' Stainless Steel Custom Flex Length d24.75 you can also choose whether

you can also choose whether you want a flush hearth or a trough designed for use with Mason-Lite’s optional Opalescence Linear Burner w/LED lighting or Golden Blount Alpine Burner

Adapter to transition from all brands of Listed Type B Gas Vent to Flexi-Liner

The protective hood comes in a Hammered Pewter finish

Divinity™ Flame Pattern

DuraVent FasNSeal Flex 7" x 40' Stainless Steel Custom Flex Length d24.75 you can also choose whetherMade 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