The UUIDEAR Mini External Inline CO2 Diffuser is engineered for efficient CO2 diffusion with a sleek, rust-resistant aluminum body that ensures long-term durability. Available in 12mm and 16mm sizes to fit standard tubing, this diffuser features a replaceable ceramic membrane that produces ultra-fine CO2 bubbles, maximizing absorption for optimal plant health. Its low-resistance design maintains strong water flow, minimizing any impact on filtration. This diffuser also includes a visual window for easy monitoring of CO2 bubble flow, allowing precise control over CO2 levels. Flexible horizontal and vertical installation options make it adaptable for various aquarium setups, maintaining a clean, unobtrusive look. Technical Specifications: Material: Non-rust aluminum body with high-quality ceramic membrane Compatibility: Available in 12mm and 16mm sizes Installation Options: Horizontal and vertical Pressure Requirement: Minimum CO2 pressure of 2 bar (30 PSI) for optimal diffusion Installation Instructions: Connect the Diffuser: Install inline on the tubing between the filter outlet and the tank. Attach CO2 Line: Securely connect CO2 tubing to the inlet and tighten. Build Pressure: Set the CO2 regulator to 2 bar, allowing a few minutes for full pressure. Packaging Includes: 1 UUIDEAR Mini External Inline CO2 Diffuser (12mm or 16mm) Replaceable ceramic membrane 2.5 x 30mm screwdriver 2 hose clamps for secure installation