Double-Wall Increasers

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Double-Wall Increasers

3-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 QtyLbs/CtnList Price/EachList Price/Ctn
3x4 DW Increaser, 3" to 4"41----
3x5DW Increaser, 3" to 5"42----
3x6DW Increaser, 3" to 6"42----
3x7DW Increaser, 3" to 7"43----
3x8DW Increaser, 3" to 8"44----
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