The STK-10 PAD measures 25"x48" and comes in a pack of 8 from Koch Filter Corp. This high-efficiency filter pad is designed for various air filtration applications, ensuring optimal performance in HVAC systems. Constructed from quality materials, it effectively captures airborne particles, enhancing indoor air quality. The pad's dimensions allow for easy installation in compatible systems, making it a versatile choice for both residential and commercial use. With a focus on compliance with industry standards, this filter pad is engineered to meet rigorous performance criteria.