DuraVent FasNSeal W2 7" 316L Stainless Steel Double Wall Test Port d5.44 The flashing is installed either

The flashing is installed either parallel or perpendicular to the roof ridge

or ongoing maintenance

22 inches in width

Tightening coupler

4 x Chairs

DuraVent FasNSeal W2 7" 316L Stainless Steel Double Wall Test Port d5.44 The flashing is installed eitherFasNSeal 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