200MM RHINO FILTER - FAN ADAPTOR: Efficient Grow Room Ventilation Enhance your grow room ventilation with the 200MM RHINO FILTER - FAN ADAPTOR. Designed for optimal airflow, this fan adapter ensures efficient odour control and air purification. Made with high-porosity carbon and lightweight aluminium, it's easy to handle and provides superior performance. Ideal for hydroponic systems and indoor gardens, this filter effectively removes unwanted odours, maintaining a clean and healthy growing environment.