[CM-1] AIRBASE Single Membrane Self Sinking Diffuser AssemblyAIRBASE self weighted membrane air diffuser assemblies are designed to be placed at the bottom of a pond or lake. The self weighted design eliminates need for gravel and reduces installation time. The AIRBASE diffuser assembly features round rubber (EPDM) membrane diffusers with thousands of holes which produce small air bubbles when supplied with air from an on shore compressor. These bubble rise to the surface and create circulation that helps