Active Aqua | Air Stone, Cylindrical, 2" x 4"

The largest of Active Aqua's cylindrical air stones at 4" long and 2" across. Its micropore surface puts out fine bubbles that oxygenate and circulate the reservoir, which helps keep roots healthy and the solution fresher.

The fitting takes 1/4" air tubing. One-year warranty.

Pairs with: Active Aqua 1/4" OD Black Tubing 100', Active Aqua Air Pump 2 Outlets 3W.