M G Dura-Vent 10DCA-48 10 Inch x 48 Inch DuraVent DuraChimney II Pipe Features DuraChimney II is an exceptional factory-built alternative to pre-fabricated masonry chimneys. Lightweight design which eliminates the need for field assembly of pipe sections allowing for faster installation. DuraChimney II is designed to stay cool on the outside to provide a hot draft on the inside and to provide a fire-safe design that protects both the chimney and the building. The double-wall air-cooled design allows the chimney to expand both radially and lengthwise under high temperatures. Material - Stainless Steel Size - 10 x 48 in.