ITEM NAME:High Quality Aquarium Fish Tank CO2 Generator System With CO2 Diffuser Carbon Description: CO2 plays an indispensable role to the photosynthesis of aquatic plants, but the aquarium can not provide a genuine environment for plants' growing, so it comes even important for adding adequate amount of CO2 to the aquarium. Pressurized CO2 system includes caps, needle valve, 3-way connector, check valve, tubing, pressure gage. Easy operations, great DIY enjoyment, perfect CO2 generator. Extra fine ceramic micro bubble diffuser plate. Perfect for aquarium, tank, ect. Specification: CO2 Diffuser Height: Approx. 7.5cm/2.95inch Glass Cup Diameter: Approx. 2cm/0.79inch Material: Glass and Ceramic disc Color: Clear Package Includes: 1 Piece CO2 Diffuser 1 Piece Suckers 1 Piece Accessory 1 Piece Pressure Gage 2 Piece Bottle Cap 1 Piece Control Valve Tubing (6mm outer diameter) Note: Since the size above is measured by hand, the size of the actual item could be slightly different from the the size above. Due to the lighting effects, monitor settings,etc.There could be some slight difference in the color tone of the pictures and the actual item. SKU: DMO0015362019394635.Specification: CO2 Diffuser Height: Approx. 1 Piece CO2 Diffuser. Extra fine ceramic micro bubble diffuser plate. Perfect for aquarium, tank, ect. Material: Glass and Ceramic disc. 2 Piece Bottle Cap.