The SPT-10 Pad measures 11"x31" 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 air quality. Constructed from durable materials, it effectively captures airborne particles, enhancing HVAC system performance. The pad's dimensions allow for easy installation in standard filter frames, making it a versatile choice for both residential and commercial settings. With a focus on compliance with industry standards, this product is engineered to meet rigorous filtration requirements.