ProFlow Technology by KodiakHow does it work? and why is it the best technology for fresh fishing bait in a container?Simply put, most bait fish have to swim in order to allow oxygen rich water to flow over there gills to breath. When held in the small confines of a bait tank their swimming velocity is greatly reduced. The Kodiak Pro Flow tank with directional flow compensates for this by directing a gentle flow of water in the tank that the fish can swim into and receive more oxygen. iMarine offers three Kodiak ProFlow Tanks, the Round PF-14 and the PF-22 and PF-32 oblong tanks. Like all ProFlow tanks the walls are smooth with baffles flush to the tank walls and nothing for the fish to collide with. Schooling species of bait fish breathe by swimming while water passes over their gills. When they are held in the relatively small confines of a bait tank, the fish suffer from lack of oxygen, as they cannon swim fast enough to provide enough water to pass over their gills. Part Number: PF-22Capacity: 22 GallonsSize: 22" Long 17" Wide 24.25" High