Introducing the HE400 Series H13 True HEPA Filter for Shark 4-Fan Air Purifiers – your solution for enhanced indoor air quality. This replacement filter is meticulously designed to fit seamlessly with Shark models HE400, HE401, HE401C, HE401NP, HE402, HE402C, HE405, and UA415, offering an effective and reliable air purification solution. Key Features: Advanced Filtration Technology: The HE400 Series H13 True HEPA Filter is engineered with cutting-edge H13 True HEPA filtration material, capturing particles as tiny as 0.3 microns. Experience superior air purification and breathe cleaner air in your home. Perfect Compatibility: Tailored for Shark 4-Fan Air Purifiers, this replacement filter effortlessly replaces Part # HE4FKBAS, HE4FKPET, and HE4FKPRO. Ensure a snug fit and maintain optimal performance for your Shark unit with this precise replacement. Single Pack Convenience: This pack includes one HE400 Series H13 True HEPA Filter, providing you with a convenient solution for replacement. Keep your air purifier operating at peak efficiency by regularly replacing the filter to ensure a continuous supply of clean, fresh air. Reliable and Durable: Crafted with high-quality materials, this replacement filter is built to last. Experience reliable performance and durability, contributing to a healthier living environment for you and your family. Easy Installation: Enjoy a hassle-free replacement process with the user-friendly design of the HE400 Series H13 True HEPA Filter. Maintain the effectiveness of your Shark 4-Fan Air Purifier by effortlessly installing this replacement filter, ensuring continued clean air and optimal performance. Upgrade your indoor air quality with confidence using this premium HEPA filter replacement. This is a non oem prodcut. Quality After Market Part.