Click Here for Ventilation Accessories, Ventilation Accessory Items, K- Series Transitions 

K- Series Transitions - found at - LUWA: Distributor of Superior Appliances by Design 

 
K- Series Transitions

K Series Hood Transition - 3 1/4 in by 10 in to 7 in Round-VP521
6 in. Round to 3 1/4 in. by 10" Rectangular Offset Kit-VP550
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