Aquaneat 1.5 Inch Air Stone Disc, 4 Packs, Aerator Bubble Diffuser, Air Pump Accessories For Hydroponics, Aquarium Fish Tank, Po

Features: Widely Applicable: Suitable For Hydroponic Systems, Ponds, Aquarium Fish Tanks, Helping Extend The Life Of Your Nutrient Solution Air Stone Dimension: 1.5 ''D X 0.6 '' H Fits For 3/ 16 Inch Standard Airline Tubing Quality And Safe Materials: Made Of Safe And Washable Material Disk-Shaped Design Makes It Easily Be Hidden In Your Aquarium Or Other Fish Tank Bubble Decorations (Note: Soak Them At Least For 2 Hours Before Use) Dimension: 1.5 '' In Diameter X 0.6 ''H Includes: 4 Pcs Of Air Stones