The MULTI-PLEAT HT-CL1 is a high-efficiency air filter measuring 18"x24"x2" from KOCH FILTER CORP. This pleated filter is designed to capture a wide range of airborne particles, ensuring cleaner air in residential and commercial settings. Each carton contains 12 filters, making it a practical choice for regular replacements. The filter's pleated design increases surface area for enhanced filtration efficiency while maintaining low airflow resistance. It meets industry standards for performance and is compatible with various HVAC systems, making it a reliable option for air quality improvement.