The 20x20x10 Spray Stop U-Cube HE filter, packaged in sets of 6, is a high-efficiency air filter by Koch Filter Corp. This filter is specifically designed to capture fine particles and improve indoor air quality. Constructed with advanced materials, it features a unique cube design that enhances airflow while maintaining filtration efficiency. Suitable for various HVAC applications, it complies with industry standards, ensuring reliable performance. The U-Cube HE filter is an excellent choice for both residential and commercial environments.