DuraVent FasNSeal 12" 29-4C Stainless Steel Variable Pitch Roof Jack btu785 5" x 4" and fits

5" x 4" and fits the majority of all 4-sided Pyramid style heaters sold during the past few years

Black Canvas Cover

Adopts ergonomic principles

9%  effectiveness

DuraVent FasNSeal 12" 29-4C Stainless Steel Variable Pitch Roof Jack btu785 5" x 4" and fitsAll 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