DuraVent FasNSeal W2 16" 316L Stainless Steel Double Wall Insulated Wall Thimble With AVL Pipe o16 Model 35CVS-SC Series 3" x

Model 35CVS-SC Series 3" x 5" Concentric Vent System

EXCELiner has been tested and listed to the ULC S-635 ULC S-640 and UL 1777 chimney liner standards by INTERTEK

Requires a DVL/ DuraBlack Chimney Adapter to fasten into the support box or wall thimble

short stem (use K4 to extend stem) (Copreci

50/88 barrier requirements

DuraVent FasNSeal W2 16" 316L Stainless Steel Double Wall Insulated Wall Thimble With AVL Pipe o16 Model 35CVS-SC Series 3" xFasNSeal W2 (double 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