Consistent flow - Constant steady airflow. Easily adjust the air flow rate for the diffuser Quiet operation - Vibration resistant rubber feet and eye hook, and insulated housing prevent excess vibration and noise Customizable bubbling patterns - The air diffuser has a range of bubble patterns to select from Flexible installation - Suspend by the eye hook or place horizontally Energy-efficient Complete set for a quick start 100 gallons per hour max flow rate Submersed installation Fresh and marine water compatible 3 year warranty

https://store.oase-usa.com/products/oase-oxymax-400