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Thimble Wall Double B-gas 4in

Thimble Wall Double B-gas 4in

$13.26

Adjusts for various wall thicknesses from 4" to 6". Provides proper clearance for vent from combustibles and serves as a firestop.
  • WALL THIMBLES
  • Size In=4
  • AMERI-VENT
  • TYPE B GAS - DOUBLE WALL

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