EcoPlus Aqua Lung 10 inch Air Diffuser with base uses a precision molded rubber membrane to expel micro bubbles that maximize oxygen transfer levels in your water or nutrient solution. The membrane is constructed with EPDM material and secured with chemical resistant ABS molded plastic. Used in the water treatment industry for years, this product has proven performance. Durable, cleanable and easy to use. Comes with mounting base with suction cups to secure to the bottom of tanks or reservoirs. The EcoPlus Aqua Lung screws in to the top of the base and air supply connects to the 1/4 inch fitting. For use with EcoPlus Commercial Air Pumps and Air Force Pro Linear Air Pumps.