4 Pieces 4-inch air stone disc bubble diffuser with 12 pieces suction cups for hydroponics aquarium fish tank pump aerator diffuser round air stone kit

Increase air flow and oxygenation in water:
The air stone disc is sintered at a high temperatures of 1500 degrees Celsius for durability, great for diffusing air to increase air flow and oxygenation in aquariums, ponds, hydroponics and aquaponics. Rising bubbles made of harmless mineral material enhance vital hydroponic system aeration and water movement, versatile air stone for decorative and functional air bubbles.

Specifications:
Material: ABS shell
Color: as the picture shows
Size: 4.1 inch/ 10.5 cm in diameter, 0.75 inch/ 1.9 cm in height
Recommended air pump power: 4W - 8W (works best with 8W air pump)
Suitable tube diameter: 3/ 16 inch and 3/ 8 inch
Recommended fish tank range: 24 - 59 inch/ 60 - 150 cm
Use: hydroponic systems, ponds, aquariums, fish tanks, freshwater/ saltwater aquariums

Instructions:
1. Place air stone in water for 2 hours before use.
2. Connect airline hose to air stone with an air pump, set air stone horizontally in water and use suction cups to hold in place.
3. Turn on air pump and enjoy the bubbles.

Package includes:
4 x Air stone discs
12 x Suction cups

Warm notice:
Before first use, please soaked it for 2 hours and the hose connected to the air pump can be repeatedly plugged and unplugged more than 4 times, which can help the air bubbles to be more uniform.
When the water depth exceeds 1.3 feet (40 cm), you may need an air pump with higher power wattage.
Cleaning tips: we suggest to clean the disc once a month, of course you can clean it more often. You need to clean algae and other impurities on the disc to prevent holes from being blocked.
When not in use, clean and store in a dry shaded area.