6" DuraVent DuraBlack Stainless Steel Stovetop Adaptor 6DBK-ADSS This adaptor is used to adapt DuraBlack stove pipe to appliance flue outlet. 22-gauge strength Lock seams 18" clearance to combustibles 430-Alloy Stainless Steel Single-wall interior stove pipe for connecting wood stoves to manufactured chimney Economical and drip-free connection No need for cutting or crimping