DuraVent DuraFlex AL 3" Aluminum Top Plate w103 the date of the original

the date of the original installation of the product

Selkirk 6" to 8" Inner Diameter

support boxes with factory-installed starter sections

Model Size Dimension 46DVA-WS 4"x6

Caution: Please beware that

DuraVent DuraFlex AL 3" Aluminum Top Plate w103 the date of the originalDuraFlex Aluminum An economical venting system used for relining masonry chimney for natural gas or liquid propane category I, draft hood equipped appliances, and appliances tested and listed to use Type B Gas Vent for a wide range of applications, including: natural gas fireplaces, gas fired furnaces, boilers, water heaters, and wall or space heating applications. Protects the masonry chimney from damaging effects of flue product condensation.