Koch Filter Corp's MD-10 PAD filter measures 22"x23" and comes in a pack of 25. This filter is designed for high-efficiency air filtration, effectively capturing airborne particles and improving air quality. Its durable construction ensures long-lasting performance in various HVAC applications. The MD-10 series filters are engineered to provide optimal airflow while maintaining a high level of filtration efficiency, making them suitable for both commercial and residential use. This filter complies with industry standards, ensuring it is a reliable choice for maintaining clean air environments.