A. Replacement filter for the Rainbow E2 HEPA-style filter, suitable for the E2 series. Compatible with part numbers R12179 and R12647B, it is washable and reusable. Dimensions: approximately 10x10x50 mm / 0.34x0.34x1.97 inches. Brand: Think Crucial. B. This air filter can replace your existing Rainbow HEPA exhaust filter, allowing you to breathe clean air again. It is suitable for Rainbow E2 series vacuum cleaners. C. A healthier lifestyle: No one wants to breathe polluted air at home, and that's what you'll face if you don't replace the vacuum filter. Replacing the filter helps clean the exhaust of the vacuum cleaner, enabling you to lead a healthier life. This filter helps block household dust, pollen, and mold spores. D. Easy to install: So you can continue your cleaning work as soon as possible. It can be compared with Rainbow part numbers R12179 and R12647B. E. Save money with this air filter: When the air filter of your vacuum cleaner is clogged or dirty, it will increase its workload, which may ultimately increase your electricity bill. F. Product detail pictures: Our products are made of good - quality materials, aiming to provide you with a better user experience. We strive to ship the order within three days after purchase, and the estimated delivery time is 8 - 15 days. G. When shopping, pay attention to the size and specifications of the product to ensure it meets your needs. In the title and relevant content, we have provided detailed information about the product, including its features and specifications. H. We hope you are satisfied with your purchase. Therefore, if you have any questions or concerns, please feel free to contact us. We are always available to help and will try our best to assist you. I. Thank you for choosing our product. We hope you like it.