Aquarium Inline CO2 Replacement Head Package Contents: Includes one Aquarium Inline CO2 Replacement Head per package. Designed for compatibility with various aquarium filtration systems, making it an ideal replacement accessory to maintain CO2 levels in your tank. Precise Dimensions: Crafted with a 0.8 cm (0.31 inch) diameter for accurate and consistent CO2 diffusion. The fine head design ensures gas distribution, improving plant growth and tank health. Quick and Simple Installation: The easy insert mechanism allows fast installation without tools. Connects securely without obstructing water flow, ensuring efficient CO2 delivery while reducing gas consumption over time. Space Saving Design: The external mounting style keeps your aquarium interior uncluttered, preserving the natural appearance of your aquascape and maximizing swimming space for fish. Practical Applications: 1. Ideal for planted freshwater aquariums where precise CO2 distribution is essential for lush plant growth. 2. Effective for aquariums using inline filtration systems, allowing seamless integration without disturbing the tank layout. 3. for hobbyists upgrading or replacing worn CO2 diffuser heads to maintain consistent performance. Durable and efficient, this Aquarium Inline CO2 Replacement Head is a reliable solution for maintaining a healthy, balanced aquatic environment while keeping your setup clean and organized.