6" DuraVent DVL Stove Adaptor 6DVL-ADWD This stove adaptor connects DVL pipe to the appliance flue outlet. Connects DVL pipe to the appliance flue outlet. Use as a stove adaptor. Use with DuraVent factory-built chimneys 430-alloy stainless inner wall aluminized steel outer wall 1" outer diameter Reduces clearances from 18" to 6" for walls Reduces clearances from 18" to 8" for ceilings Sturdy construction to ensure long-lasting durability Creates a tight secure connection in your venting system .016” stainless steel inner wall. .018” galvanized outer painted black.