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8" DuraVent DuraPlus Square Ceiling Support Box - 8DP-CS24

Item: COP69880

Please contact Customer Partner at 800-247-3305 for alternatives or expected availability.

Product Details
  • Use when air-cooled chimney is required
  • Free-floating inner 430-alloy liner maintains structural integrity in chimney fires
  • 2" clearance to combustibles
  • Outer diameter is 4" larger than inner diameter
  • Triple-wall chimney
  • For uses with wood stoves, fireplaces, furnaces, boilers, stoves, ranges, water heaters, or other appliances fueled by wood, oil, coal, or gas
  • Clean, smooth exterior finish

8" DuraVent DuraPlus Square Ceiling Support Box - 8DP-CS24

This square ceiling support box is used with flat, vaulted, or cathedral ceilings. Supports up to 35' of DuraPlus chimney. Starter section built-in. Trim included.

WARNING: Carcinogens: This product can expose you to chemicals including Lead, which is [are] known to the State of California to cause cancer. For more information go to

Limited Lifetime Warranty