Aquarium Water Treatment -Aquarium CO2 Diffuser Highlights Generic Brand Aquarium CO2 Diffuser Description: High quality polished stainless steel CO2 diffuser, durable and stylish, adding a beautiful decor to your home. your aquarium. Separate design, attach with a U-shaped connector, the size can be adjusted freely, and the U-shaped connecting tube can avoid CO2 flow blockage. Helps ensure plants receive adequate amounts of CO2, improves the growth and health of your plants with sufficient CO2 supply. Note: The CO2 diffuser may release large CO2 bubbles during its first 1-3 days of use. When the ceramic disc becomes saturated with water, it releases fine bubbles of CO2, which is normal and may take up to three days. Each pack includes 1 CO2 diffuser, 1 U-tube, 3 suction cups and 10 ceramic discs. Specification: Aquarium CO2 Diffuser: Material: Stainless Steel Co2 Diffuser Length: Aprox. 6.5cm / 2.56inch Co2 Diffuser Head Diameter: Approx. 2.4cm / 0.94 inch U-tube length: Approx. 4.2cm/1.65inch Suction cup diameter: approx. 2.7cm / 1.06 inch Ceramic CO2 Diffuser Disc: Material: Ceramic Diameter: Approx. 2 cm Package includes: 1 Piece CO2 Diffuser 1 Piece U-tube 3 Piece Suction Cups 10 Piece Ceramic Disc Note: Since the above size is measured by hand, the size of the actual item might be slightly different from the the size above. Due to lighting effects, monitor settings etc. There could be a slight difference in the color tone of the pictures and the actual item.