Photo 1 of ***USED - LIKELY MISSING PARTS - UNABLE TO VERIFY FUNCTIONALITY*** SUPROCKY Room to Room Air Transfer Fan, Through Wall Exhaust Fan with Intelligent Programmed Air Exchange System

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Photo 1 of ***USED - LIKELY MISSING PARTS - UNABLE TO VERIFY FUNCTIONALITY*** SUPROCKY Room to Room Air Transfer Fan, Through Wall Exhaust Fan with Intelligent Programmed Air Exchange SystemPhoto 2 of ***USED - LIKELY MISSING PARTS - UNABLE TO VERIFY FUNCTIONALITY*** SUPROCKY Room to Room Air Transfer Fan, Through Wall Exhaust Fan with Intelligent Programmed Air Exchange SystemPhoto 3 of ***USED - LIKELY MISSING PARTS - UNABLE TO VERIFY FUNCTIONALITY*** SUPROCKY Room to Room Air Transfer Fan, Through Wall Exhaust Fan with Intelligent Programmed Air Exchange SystemPhoto 4 of ***USED - LIKELY MISSING PARTS - UNABLE TO VERIFY FUNCTIONALITY*** SUPROCKY Room to Room Air Transfer Fan, Through Wall Exhaust Fan with Intelligent Programmed Air Exchange SystemPhoto 5 of ***USED - LIKELY MISSING PARTS - UNABLE TO VERIFY FUNCTIONALITY*** SUPROCKY Room to Room Air Transfer Fan, Through Wall Exhaust Fan with Intelligent Programmed Air Exchange System