Powerful / inexpensive system operates on 110 volt household current. Great for keeping fish indefinitely. Complete system with pump, airline tubing and weighted airstone. Rubber base mount - very quiet. Fresh or salt water. 1 year warranty. Produces 99.5% saturation of dissolved oxygen Complete ready to use systems Weighted glass bead air stones, and silicone airline tubing included Every unit is tank tested to assure quality No batteries required
