DuraVent FasNSeal 4" x 36" 29-4C Stainless Steel Adjustable Vent Length o4 and Linear T styles

and Linear T styles

Designed specifically for I33S4028B surround assemblies

Be sure to not let your logs protrude past the top vent holes for an optimal burn

Two Heat-Zones run continuously will redirect up to 50% of the total heat output

DuraVent FasNSeal 4" x 36" 29-4C Stainless Steel Adjustable Vent Length o4 and Linear T stylesAll 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