Exquisite Design: Its rounded surface and flat bottom give it a stable, frosted, and smooth finish. Increase Oxygen: Its high air volume and smooth airflow make it an ideal way to add oxygen and reduce carbon dioxide levels in your hydroponic systems, circulation systems, ponds, aquariums, and fish tanks. Durable Materials: The aquarium air diffuser disc is made of durable sandstone and stainless steel, allowing for frequent cleaning and extended use. Keep Fish Healthy and Active: The diffuser disc is fired at high temperatures for excellent breathability. Safe, washable, durable, and made of non-toxic materials, it keeps fish healthy and active. The air diffuser disc is ideal for freshwater, saltwater, and hydroponic aquariums, as well as fish farms and aquaculture, creating stunning underwater scenes. The air diffuser gradually diffuses air into the aquarium, providing your fish with the oxygen they need to breathe. If you are an aquatic pet lover, an air diffuser is a must-have item in your home. Air diffusers are made of high-quality, non-toxic mineral materials and sintered at high temperatures. They are durable and have a high dissolved oxygen content. They produce fine, uniform bubbles, rather than a limited number of large bubbles. Air diffusers have the following features: - Extremely strong and durable; - Light enough to sink to the bottom, eliminating the need for suction cups; - Dissolve more oxygen into the water; - Produces fine, smooth, and dense bubbles; - Powerful filtration, suitable for both fresh and salt water; - Easy to clean. Package includes: 1 x Air Diffuser