Upgrade your aquarium, hydroponic, or pond system with the SLOCME 2-Inch Air Stone Balls, 4 Pack. These spherical oxygen diffusers create a steady stream of fine bubbles that help boost dissolved oxygen levels, keep fish and plant roots healthy, and enhance water circulation. Perfect for both freshwater and saltwater aquariums, deep-water culture systems, small ponds, and winter pond aeration.

Crafted from premium mineral material and fired at high temperatures, these air stones are durable, safe for aquatic life, and designed for long-term use. Their weight ensures they stay in place without floating, while the standard connectors make installation simple.

Specifications:
Quantity: 4 pieces
Size: 2" diameter (5 cm)
Weight: 110 g each
Fits airline tubing: 4 mm or 3/8"
Recommended pump power: >4W (5 L/min output)

Warm Tips:
Soak the air stones completely in water for 30–60 minutes before first use for optimal bubbles.
For deep placement, use a higher wattage air pump.
Clean the surface regularly with a brush to prevent clogging and maintain performance.