457K4x6 to 7" Round Transition for RM326H Blower

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  • Maximize the air and sound performance of your Broan ventilation fan or range hood using one of our wide vaiety of ducting accessories.

    • Horizontal ducting kit in 4"x6" to 7" round transition made to fit the RM326H blower outlet only
    • Sold as 1 to a carton