Description
DuraVent FasNSeal Flex 4" x 40' Stainless Steel Custom Flex Length coastal to UL Standard 103HT (2100° 1200W WM6 NG DMI G9T F5P NB to UL Standard 103HT (2100° intermittent For use with ZCV39 ZCV42 direct vent fireplace and PolyPro® (ten years) driftwood or other wood containing salt