The SPT-10 PAD measures 5"x9" and comes in a pack of 25, designed by Koch Filter Corp. This high-efficiency filter pad is ideal for various air filtration applications, ensuring optimal performance in HVAC systems. Constructed from durable materials, it effectively captures airborne particles, enhancing indoor air quality. The pad's compact dimensions allow for easy installation in standard filter frames, making it a versatile choice for both residential and commercial use. With a focus on compliance with industry standards, this product is engineered to meet the demands of modern filtration needs.