Selkirk 6 in. Galvanized Steel Stove Pipe Support No. 6T-SB. 6" x 24". Type A chimney. Use with Model SSII in an A- frame, mobile home or ceiling under a narrow section of roof. Provides a finished installation at ceiling. Supports up to 20' of 6" or 8" dia chimney. Also provides shielding from insulation in an unoccupied attic space. Installs inside 16" O.C. joists. Includes a cylindric shield support bucket, ceiling trim and four screws. Boxed. Features Use with Model SSII in an A- frame, mobile home or ceiling under a narrow section of roof Includes a cylindric shield support bucket, ceiling trim and four screws Also provides shielding from insulation in an unoccupied attic space Provides a finished installation at ceiling Supports up to 20' of 6" or 8" dia chimney USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.