6'' x 48'' DuraTech Galvanized Chimney Pipe - 9407GA The DuraTech chimney System is designed to stay cool on the outside and provide a hot draft on the inside. A fire-safe design protects both the chimney and the building. DuraTech's Light-weight insulation and sleek 1'' wall design provides for easy installation. No locking bands or mechanical fasteners required Manufacturer's Limited Lifetime Warranty