The Tsunami Recirq Aeroator Kit includes a 500 gallons per hour Tsunami aerator pump, a spray head, a stainless steel strainer, 2 hose clamps, a 3/4 inch diameter 23 inch hose and a straight thread-to-barb connector. This self contained system keeps livewell water rich in oxygen and cool to keep your catch or bait healthy. For use for any tank or livewell that already has a freshwater fill system or a great failsafe system as a back up pump!