DuraVent FasNSeal W2 8" 90 Degree 316L Stainless Steel Double Wall Elbow h16.88 Williams Furnace High Altitude Conversion

Williams Furnace  High Altitude Conversion Kit with all Required Orifices for 3501521A/3501921A/3502521A/3502921A

Models 42"

275 inches wide by 4 inches tall

72 and 84 inches

Dimensions Three seaters sofa 72" (D) x 29

DuraVent FasNSeal W2 8" 90 Degree 316L Stainless Steel Double Wall Elbow h16.88 Williams Furnace High Altitude ConversionFasNSeal 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