Features:
Widely applicable: Great for freshwater, saltwater/reef aquariums and hydroponic use; Increase oxygen levels, "blow off" CO2 and raise pH; Can be easily driven by even nano air pumps, also suitable for sponge filters
Material: Durable and sturdy material; Safe to your fish
Dimension: 0.5" D x 0.6" H; Fits standard airline tubing aquarium and CO2 tubing with inner diameter of 3/16"(4mm)
Note: You have to soak it in water for about 30 minutes before connecting to an air pump to run it
Includes: 12 pieces of gray air stones
DIMENSION:
0.5" in diameter x 0.6"H
INCLUDES:
12 pcs of air stones
