The DUO-CUBE 3 PLY filter measures 18x20x8 inches and is designed for high-efficiency air filtration. Manufactured by Koch Filter Corp, this filter features a three-ply construction that enhances its durability and filtration capabilities. Ideal for HVAC systems, it effectively captures airborne particles, ensuring cleaner air in commercial and industrial environments. Each carton contains 10 filters, making it a cost-effective solution for maintaining air quality. The filter complies with industry standards, ensuring reliable performance and compatibility with various air handling systems.