The OWS Quad Disc Rubber Membrane Diffuser with Self-Sinking Base is built for serious pond and lake owners who demand maximum aeration with minimal hassle. Designed with four high-performance rubber membrane discs, this diffuser pushes oxygen-rich bubbles deep into the water column-improving water clarity, reducing algae growth, and creating a healthier environment for fish. Unlike stone diffusers that clog and weaken over time, each rubber membrane features a self-cleaning design that resists buildup and maintains airflow season after season. The heavy-duty powder-coated metal base ensures the unit sinks on its own-no need to waste time hauling gravel or extra weights. Engineered for efficiency, the diffuser operates at low psi, reducing stress on your pump and saving energy while delivering superior water circulation. Built to perform, built to last-this diffuser is trusted by pond managers, landowners, and serious anglers who want results they can see. Invest once. See clearer water, healthier fish, and a thriving pond ecosystem.