DuraVent FasNSeal 10" 29-4C Stainless Steel IPS Drain Fitting d12 Fits 29" to 33" ID

Fits 29" to 33" ID

H-shaped Burner

Model 4MOSC Application For use with category I natural gas-burning or propane-fired appliances such as gas boilers

consistent performance

Diameter 19 inches  25 inches  Heat Rating 147

DuraVent FasNSeal 10" 29-4C Stainless Steel IPS Drain Fitting d12 Fits 29" to 33" IDAll 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