Size (length*width*height): 20cm x 20cm x 20cm

Functions of CO2 bubble counter, check valve and diffuser in one unit. Specific ceramic applied to assure most delicate CO2 diffusing effect. Made of transparent acrylic which provides precise, clear and easy CO2 bubble reading. Easy and simple in cleaning, changing the ceramic or water filling. Most reliable function of stopping back flow and syphoning, design of stainless spring in acid resistant. Made of specific material of sucker which is acid and harden resistant.