Replacements for Rainbow E2 HEPA Style Filters fit E2-Series, compatible with part numbers R12179 and R12647B. Washable and reusable design. Approximate size: 10x10x50mm (0.34x0.34x1.97 inches). High-quality air filter replaces existing Rainbow HEPA exhaust filter. Helps restore clean air performance in Rainbow E2-Series vacuums. Maintain a healthier home environment. A clean filter helps capture household dust, pollen, and mold spores, improving air quality. Replace your old or dirty filter to ensure efficient vacuum performance and cleaner exhaust air. Easy to install—simply replace the old filter and resume cleaning. Designed to be compatible with Rainbow models requiring part numbers R12179 and R12647B. A clogged or dirty air filter can reduce vacuum efficiency and airflow. Using a clean, high-performance filter helps maintain optimal operation and may improve overall system performance.