- Durable and Lightweight: Crafted from high-quality materials, this flange offers excellent hardness while remaining lightweight, ensuring easy installation and handling. - Convenient Screw Hole Design: Features a 5 mm diameter screw hole for secure fastening to various surfaces. With dimensions of 12 x 12 cm and a thickness of 3 cm, it provides a stable and reliable connection. - Optimal Spacing and Pipe Diameter: The 5 cm spacing between smaller screw holes allows ample room for secure attachment. The round pipe diameter of 11 cm ensures efficient airflow and ventilation. - Perfect Fit for 12038 and 12025 Fans: Designed specifically for 12 x 12 cm ducting, this flange is ideal for setups requiring 12038 or 12025 fans, providing a precise fit that enhances performance. Use Scenarios: 1. Ventilation Systems: Ideal for connecting fans in residential or commercial ventilation systems, ensuring optimal airflow and efficiency. 2. Aquarium Cooling: Perfect for cooling systems in aquariums, maintaining water temperature and ensuring a healthy environment for aquatic life. 3. DIY Projects: A great choice for custom cooling solutions in various DIY projects, allowing for easy integration and secure connections. This flange combines functionality with compatibility, ensuring it meets your specific needs for air movement and ventilation.