The SPT-10 PAD, sized 20"x89", is a high-performance air filter pad from Koch Filter Corp, available in packs of 8. This pad is designed for effective air filtration in larger HVAC systems. Its durable construction ensures long-lasting performance while maintaining optimal airflow. The SPT-10 PAD effectively captures airborne particles, contributing to improved indoor air quality. It meets industry standards for filtration efficiency and is easy to install, making it a practical choice for both residential and commercial applications.