Selkirk 206018 Sure-Temp Insulated Chimney Pipe, 6" x 18" Crystal Drain Cleaners Frames are liberally proportioned and

Frames are liberally proportioned and heat-treated for maximum strength

Blade width : 8"

Series 2000

Applicable Standards ANSI 156

Selkirk 206018 Sure-Temp Insulated Chimney Pipe, 6" x 18" Crystal Drain Cleaners Frames are liberally proportioned andType HT chimney pipe special augured in mineral wool insulation filling the space between stainless steel walls is only 1 inch thick, yet provides 17 times the insulating valve of brick. This optimum density of insulation stops expansion noises and resists and contains surges of heat. This allows the system to be enclosed with only 2 inch clearance to combustibles. The "solid pack" density comprises about 85 percent air. The mixture of extremely fine