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Hello, I can help you with this question. These are 2 separate components. The 8330 -3851 is a control box and the 8330-7332 is a plenum kit with an empty spot for a control to be installed. My research shows that the 3851 control is compatible and will fit into this 7332 box. This box will also accept a number of other controls. It also has a notation that the 7332 only fits a Winnebego rv. My resources were rvupgrades.com, laurelhurstdistributors.com and rv plus.com. I Hope this answers your question. Thank you and good luck on your installation!
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