Nano Pores: Engineered with ultra-fine nanopores to produce a low-pressure, gentle air output that efficiently oxygenates your tank without disturbing fish. High Dissolved Oxygen: Generates stable, fine bubbles that dissolve efficiently, enhancing oxygen levels and water quality for a healthier aquatic environment. Built to Last: Constructed through high-temperature firing, the air disk is perfect permeability, corrosion-resistant, anti-blocking, and durable. Stable & Wide Contact Area: A large surface area prevents the air stone from moving around, ensuring consistent placement and performance. Versatile & Safe Material: Made from ABC plastic, suitable for use in both freshwater and saltwater tanks, providing broad compatibility and reliability.