The FV-VS43R is a simple one piece transition from the 4" oval duct connection on WhisperValue series fans to readily available 3" round ducting. It is made out of 24 gauge fire rated steel to assure proper safety.
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Shop for the Panasonic - WhisperValue - 4" Oval to 3" Round Duct Adapter at eComfort. Research Panasonic 885170136540 fans online. Find Panasonic FV-VS43R fans features and specifications. Get the best deal; compare Panasonic FV-VS43R prices now. Buy the FV-VS43R direct and save.