Twin Wall flue is manufactured using 0.5mm 316 grade stainless steel for the inner skin and 0.5mm 904 grade stainless steel for the outer skin. The cavity is insulated with 25mm ceramic mineral wool.

Construction: Twin Wall
Type: Flue
Number in Pack: 1
Application: Chimney, Fireplace, Stove, flue, twin wall, appliance connector
Item Width: 5 in