If you are looking for a practical and convenient fish tank CO2 Diffuser, then you should not miss our Fish Tank CO2 Diffuser. Made of premium and sturdy material, which is not easy to deform and break. The CO2 Diffuser Glass Tube is the for fish tank and aquaculture applications. It can be used for a long time. It's a nice choice for you. Features -Color:Transparent -Material:Glass -Size:4.50X1.50X0.60cm/1.77X0.59X0.24in -Adopting of good and stable glass material, which is lightweight and durable, practical for a long using time. -Fine details and excellent workmanship, which is especially suitable for various types of air pumps and carbon dioxide generating devices. -This Fish Tank CO2 Diffuser has a smooth surface and inner wall, durable, lightweight and easy to install. -Practical and convenient design, replace old or broken glass water tubing with a new one. -It has a simple design, but very practical in use, giving you a . Package list: 1 Tube