18-12DM 18" Length Snap Lock Double Wall Wood Burning 12DM Series Pipe F0933 Brick Gray Refractory 30 FW Thickness is 1

30  FW Thickness is 1

Smooth Faced All Grey Stacked Refractory Panels

Fire Screen Front Options

Chase System Only

18-12DM 18" Length Snap Lock Double Wall Wood Burning 12DM Series Pipe F0933 Brick Gray Refractory 30 FW Thickness is 1Each double wall chimney section consists of a 15" diameter galvanized outer pipe, a 12 3 8" diameter stainless steel inner flue pipe, and a wire spacer. Actual lengths gained after fitting overlaps must be taken into consideration (lineal gain) Linear gain is the actual measurable length of a part after two or more parts are connected. For the fireplace brands listed: Comfort Glow, Comfort Flame, Desa, Design Dynamics, FMI, Vanguard, Vantage Hearth,