This is a 3" stainless steel category II/III adjustable wall thimble set. The flashing is 10" x 10" and the thimble adjusts from 4" to 7"€ Stainless steel category II/III€ UL approved

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This is a 3" stainless steel category II/III adjustable wall thimble set. The flashing is 10" x 10" and the thimble adjusts from 4" to 7"€ Stainless steel category II/III€ UL approved

  • 3" Wall Thimble Stainless Steel Venting
  • Wall thimble is used for horizontal exhaust venting through the outside wall
  • Wall Thimble is 10" x 10" and has an adjustable width from 4" to 7"
  • Rated AL29-4C and is approved for Category I (vertical only), II, III & IV applications
  • Contains a built-in, fail-safe gasket and locking band connection

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