Replacements for Rainbow E2 HEPA Style Filters fit E2-Series, compatible with part numbers R12179 and R12647B. Washable and reusable design. Approximate size: 10x10x50mm (0.34x0.34x1.97in). High-quality air filter replaces existing Rainbow HEPA exhaust filter. Designed to help restore clean air output in your home. Fits Rainbow E2-Series vacuums. Maintain a healthier living environment by replacing old or dirty vacuum filters. A clean filter helps reduce the release of household dust, pollen, and mold spores into the air. Helps maintain optimal vacuum performance. Easy to install—simply replace the old filter and resume cleaning. Compatible with Rainbow models requiring part numbers R12179 and R12647B. Using a clean, high-performance filter may help maintain efficient vacuum operation. A clogged or dirty filter can cause reduced suction and increased strain on the motor. Our products are made with quality materials to deliver reliable performance. Please verify product dimensions before purchase to ensure proper fit. Refer to product title and details for full specifications. We aim for customer satisfaction. For any questions regarding the product, please reach out through Amazon messaging.