Bait tank pro air aerator kit system contains the plumbing hardware required for connection to a water pump to make a livewell system. Water plumbing includes 'T' joiner, 90° flow direction head and spray head with flow valve, all to suit 19mm hose. Also included is a tank drain skin fitting (28mm hose size) that accepts a 90° overflow pipe. Simply remove the overflow pipe to drain the livewell tank.