IWS Oxypot KitIWS Oxypot with Air Pump Kit Also known as a Bubbler", the IWS Oxypot will amaze you with it's simplicity and speed of plant growth. It comes with a few improvements over the previous model that make accessing nutrients that little bit easier. This kit includes an airpump, air line tubing and airstone. How the Oxypot Kit Works Plants are grown in expanded clay pebbles held in a net pot suspended just above a reservoir of nutrient solution. An external