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DuraVent Type B Vent

3" to 4" Type B Gas Vent Diameter Increaser - 3GVX4

Item: COP68390
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In Stock

  • For Category 1 gas appliances
  • 1" clearance to combustibles
  • Easy-fit, twist-lock design with no fitting hassles
  • 0.012" aluminum inner
  • 0.018" galvanized outer