DuraVent FasNSeal 10" x 24" 29-4C Stainless Steel Vent Length h21 Williams Furnace High Altitude Conversion

Williams Furnace High Altitude Conversion Kit with all Required Orifices for 6501522A/6501922A/6502522A/6502922A

5" Max BTU 60

Uses outside air to support combustion

or large four-sided

Equipped with high-quality mesh to provide maximum protection against sparks and embers

DuraVent FasNSeal 10" x 24" 29-4C Stainless Steel Vent Length h21 Williams Furnace High Altitude ConversionAll 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