🐠 Mudder 12-Piece Air Stone Bar Set, 4-Inch Air Stone Diffuser Release Airstone Kit with 7ft Airline Tube, 4 Aquarium Suction Cup Clips, 4 Connectors, and 2 Check Valve Round Air Stone. Ideal for Hydroponics Fish Tanks. Review

Package includes: you will get 2 piece 12 inch air stone bar ,1 piece 7 ft airline tube, 4 pieces clear suction cups, 4 pieces connectors, 2 pieces check valves, complete standard set of aquarium accessories for most air pump. Quality and safe material: made of quality and non-toxic mineral material with high temperature sintering process, these air stone bubblers are sturdy and durable; They can produce fine bubbles for oxygen replacement and lower CO2 levels, safe for fishes to live in. Size: aquarium air stone bubble is 12 inch in diameter, fits for standard tube with inner diameter of 4 mm/ 0.15 inches, suitable for air pumps more than 10 W; Airline tube is 7 ft length, mm in diameter; The aerator diffuser is suitable for hydroponic systems, ponds, fish tanks, freshwater/ saltwater aquariums and other systems, helping extend the life of your nutrient solution, keep fish/ roots healthy and promote plant growth. Easy to use: great airline tube holder suction cups will stick air stone bar tightly to the smooth fish tank; You can put the check valve in the airline tube between air pump and aquarium water to prevent water from back siphoning; Use connectors can combine 2 inputs to create one stronger output for use with multi-outlet pumps. Note: the bubble diffuser bar can be soaked for 2 hours before being applied for the first time and the hose connected to the air pump can be repeatedly plugged and unplugged more than 8 times, which can help the air bubbles to be more uniform, clean regularly by a brush as they get clogged after weeks or months of usage.