The Rhino Weighted Air Diffusers are an excellent way to add extra oxygenation and increase water circulation in any aquatic environment. Simply attach an air pump, fill with ballast stone or gravel and toss in your pond. 

They are constructed of high strength glass filled polypropylene with high quality EDPM membranes with excellent UV resistance. They have a minimum of 6600 air orifices and feature an integrated triple check valve to prevent water backflow into the dry air supply pipe. They are also highly resistant to fouling and plugging for low maintenance. 

Normal air flow is 0-5cfm. 

The Rhino Weighted Air Diffuser is available in two sizes: 9” and 12