Hagen Aqua Fizzz 1in Air Stone 4 Pack

Aqua Fizzzz Airstone - Cylindrical - 1in - Blue - 4 pieces - Durable air stone diffuses water in every direction - Creates a dazzling underwater scene - Increases surface agitation - Accelerates oxygen replenishment - Helps release carbon dioxide build-up - Small size fits common box filters and undergravel riser stems - Fits standard airline tubing