The Vevor pond aerator air diffuser is designed to pair with an aeration compressor and airline tubing to improve oxygen diffusion in ponds and lakes. Its 7.9-inch silicone diffuser plate releases fine bubbles to help raise dissolved oxygen levels and support better water quality. A weighted SUS304 stainless steel base helps keep the diffuser securely positioned on the pond bottom. The silicone disc is built for long-term outdoor and underwater use and can be detached for easier cleaning and maintenance.