Z-Flex Z-Vent Firestop Spacer, Double Wall Stainless Steel

This page includes all diameters for the Fire Stop Spacer Double Wall item. The application is for vertical venting systems. It provide support to the venting system, and gives it the necessary clearance to combustible materials.

For diameters of 5" and more, the gear clamp is included but not attached, and does not include the gearclamp bracket.

  •  Vent material: AL29-4C stainless steel
  •  Certification: Tested to meet or exceed Underwriters Laboratories (UL) spec UL1738 and ULS636
  •  Approval: Category II, III, IV venting
  •  Limited Lifetime Warranty

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Z-Vent SVE Series IV Installation and Maintenance Instructions, 3" to 24", Single & Double Wall