Air Stones

These high quality long life air stones are made from a refined ceramic compound. They produce very fine aeration and can be used in conjunction with any good air pump. All of the cylinder ceramic air stones have rubber end housings which protect the air stone against abrasive contact from any surrounding surfaces. ...

Pondmaster Air Diffusers

Original replacement diffuser for the Pondmaster air pump. Available in four sizes for each size air pump. For Summer Use: The Diffuser will work best when placed at the center in the deepest part of the pond in summer. The rising bubbles will lift and aerate bottom water, allowing oxygen to penetrate sediments and ...

United Aquatics Disc Diffuser

This self weighted air stone disc is ready to hook up to an air pump and plop into the pond. The diffuser creates millions of tiny, micron-sized air bubbles that supply oxygen to your fish, gently circulates water from the bottom of the pond, and provides oxygen to break down organic matter in the bottom of the pond. This stone is durable and ...