The SPT-30 PAD 11"x25" filter by Koch Filter Corp is engineered for effective air filtration in diverse settings. With dimensions of 11 inches by 25 inches, this filter is designed to capture a wide range of airborne contaminants. It is perfect for use in HVAC systems, ensuring optimal air quality. The filter is made from high-quality materials that enhance its durability and performance. This product is sold individually, making it a flexible option for various applications. Its design allows for easy installation and maintenance, ensuring that your air filtration system operates efficiently.