AQUANEAT 2-Pack Large 4x2 Inch Air Stones for Aquariums, Ponds, and Hydroponics

About this item

• Air Stone Measurements: 2 inches in diameter and 4 inches in height; Compatible with 3/16 inch standard airline tubing.
• Widely applicable: Suitable for hydroponic systems, ponds, aquarium fish tanks, helping extend the life of your nutrient solution, keep fish/ roots healthy and promote plant growth
• Note: soak the stone completely in water for 2 hours before use; clean it with a brush after a period time of use
• Quality and safe materials:made of mineral and washable material,safe to your fish
• Recommended a high-output air pump at least 7W-10W or a commercial air pump