A powerful tool packaged into a five-gallon bucket, Port-O-Flush Jr.® provides portability and versatility while still efficiently handling small to medium size engines, heat exchangers, air conditioning & refrigeration systems. Designed with the do-it-yourself boat owner in mind, TRAC’s Port-O-Flush Jr.® is extremely simple to use. Tasks which normally cost you days of down time can now be confidently preformed within an afternoon.