Double-Wall Increasers

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Double-Wall Increasers

18-inch Diameter

Double-Wall Increasers

  • For gas-fueled appliance venting
  • UL Listed 441 (470°)
  • Double-wall; air insulated
  • Alumiunum inner; galvanized steel outer
  • Snap-Lock™ Design
  • Made in the U.S.A.

Part #DescriptionCtn QtyList Price/Each
18x20DW Increaser, 18" to 20"1--
18x22DW Increaser, 18" to 22"1--
18x24DW Increaser, 18" to 24"1--
18x32DW Increaser, 18" to 32"1--
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