This fan is specifically designed to be compatible with the following Vaillant boiler models: Aqua Plus VUI 362-7 & 362-7 R3, Thermo Compact 637 E, VU 362/2-5 R3, Turbo MAX Plus 837 E, and VUW 362/2-5 R3. This wide compatibility makes it a convenient solution for a range of boiler types. Reliable Performance: This electronic DC fan delivers consistent and efficient airflow, ensuring your boiler operates at peak performance. The DC motor provides smooth, quiet operation and is known for its long lifespan. Quiet Operation: Enjoy a peaceful home environment with this fan's quiet operation, minimizing noise disturbance. The fan's design minimizes vibration and air turbulence, creating a comfortable and unobtrusive experience. Easy Installation: This fan is designed for straightforward installation, making it a hassle-free replacement for your existing fan. The fan comes with clear instructions and all necessary mounting hardware, making the process simple and efficient. Durable Construction: Built with high-quality materials, this fan is designed for long-lasting performance and reliability. The fan is made from durable materials resistant to wear and tear, ensuring it withstands the demands of continuous operation. 12-Month Warranty: Enjoy peace of mind with a 12-month warranty covering defects in materials and workmanship. This warranty ensures that you are protected against any manufacturing faults, giving you confidence in your purchase., Manufacturer: HTS