Replacement Disc for Simple CO2 Diffuser Diffusing Atomizer for Plant Aquascape Aquarium Fish for Tank for Fresh Marine _x000D_ Features: _x000D_ _x000D_ OOTDTY _x000D_ Special CO2 bubbles refinement effect._x000D_ It is easy to clean and replacement, very convenient._x000D_ Ultra-thin installed in the bottom can increase the efficiency of CO2 dissolved in water._x000D_ An indispensable item for your fish for tank or aquarium,durable and reliable._x000D_ Size: Diameter about 0.79in, 1.18in._x000D_ _x000D_ _x000D_ Specifications: _x000D_ Material: Plastic_x000D_ Color: Blue+White_x000D_ Size: See the picture_x000D_ _x000D_ _x000D_ Package Includes: _x000D_ 1 Co2 Diffuser Replacement Disc_x000D_ _x000D_ _x000D_ Note: _x000D_ 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid._x000D_ 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!_x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_