The ODORKLEEN XL11ES HC filter from Koch Filter Corp measures 16x30x1 inches and is specifically designed to combat odors while providing high-efficiency air filtration. This filter is constructed with advanced materials that effectively capture dust, allergens, and unpleasant smells, making it ideal for residential and commercial HVAC systems. Each carton contains 12 filters, ensuring ample supply for regular replacements. The ODORKLEEN series meets industry standards, providing reliable performance and improved indoor air quality.