The Outdoor Water Solutions airstone is a critical component in the successful aeration of a pond or lake. The airstone turns air into thousands of tiny bubbles so that oxygen can dissolve into the water and improve its health. Diffusing air into water can increases its effectiveness by over 1000% - This is definitely a secret ingredient for efficient aeration. Dimensions 2.25x 7， 3.5 lbs.

The Airstone Diffuser Kit comes with a foot valve that prevents water from coming back up into the aeration tubing. Note: Shallow or larger ponds may require multiple Airstone Diffuser Kits.