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• Dura Vent (1)
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Increasers & Decreasers

Increasers & Decreasers allow the connection of one gas vent opening to one of a different size. Most commonly are connections from 3" to 4".

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Dura Vent 4" X 3" Round Type B Gas Vent Reduction Tee Dura Vent 4GVTR3 Price: $37.74 $17.31 You Save: $20.43 (54%)

NovaFlex Z-Flex 2SVSI0304 3" x 4" Increaser NovaFlex 2SVSI0304 $26.07

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