6"D, painter black, dvl close clearance connector kit, use kit to connect between appliance & chimney for a typical 8' to the ceiling installation, includes 1 each dvl/durablack Adapter, 2 each 24" dvl double wall black pipe, 1 each 12" dvl double wall adjustable black pipe, air insulated design reduces clearance to combustibles, 6" to walls, 8" from top of horizontal run to ceiling, subtract 3/4" for installed length constructed with a stainless steel inner wall, closest clearance to a wall of any connector pipe, improves Stove performance by maintaining high flue gas temperatures for strong & steady draft, stays hot longer, minimizes the formation of creosote, same life expectancy as the chimney, 016" stainless steel inner wall, 018" galvanized outer.