• Can serves as an excellent alternative to air stones.
• Much more resistant to clogging than fine ceramic and similar air stones in hard water areas.
• Membrane contains hundreds of slots that open as air pressure builds, allowing uniform bubble distribution.
• Insures high dissolved oxygen content in fish tanks, ponds, water gardens, and hydroponics.
• Diameter: 12 inches.
• 3/4" MPT connection for universal fit.