These great quality Air Stones aerate and add oxygen to the water in your reservoir or grow system. Circulates nutrients into the water and helps to maintain an even water temperature. For use with 3/16" inside diameter tubing. Buy at IncrediGrow.ca!

Helps to maintain an even water temperature

Measurements:

• Small Air Stone: 1.4" x 1.7"
• Medium Air Stone: 2.0" x 2.0"
• Large Air Stone: 2.0" x 4.0"