DuraVent FasNSeal 5" x 6" 29-4C Stainless Steel Vent Length shale In all but the coldest

In all but the coldest situations

This wall thimble is used for installation through a combustible wall to a masonry chimney

Model Number DWLS-VFL45 Catalog Number F4716 Compatible Fireplace VRL3045

18 lb needed for CF-1242 burners

DuraVent FasNSeal 5" x 6" 29-4C Stainless Steel Vent Length shale In all but the coldestAll FasNSeal (single wall) vent lengths and components feature patented built in mechanical locking band and triple lipped directional gaskets. All pipes and components are engineered with smooth clean welds located 90 from mechanical locking bands. This construction feature allows for ease of installation. The air space between the inner and outer wall on FasNSeal W2 helps to reduce the clearance to combustibles in addition to creating a heat shield