DuraVent FasNSeal 6" 316L Stainless Steel Single-to-Double Wall Pipe Adapter d21.75 most importantly

most importantly

Model 351313 Flue Size 13" x 13" Size Width: 11" - 13

Master Sweep Brushes have set the industry standard for chimney sweep professionals

Automatic Night Mode uses light-sensing technology to detect darkness

DuraVent FasNSeal 6" 316L Stainless Steel Single-to-Double Wall Pipe Adapter d21.75 most importantlyAll 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