The SPT-10 PAD 25"x47" by Koch Filter Corp is a high-efficiency air filter pad designed for large-scale filtration needs. Measuring 25x47 inches, this pad is perfect for industrial HVAC systems. Its advanced design allows for optimal airflow while effectively capturing dust and allergens. Constructed from durable materials, the SPT-10 meets industry standards for air quality, making it an excellent choice for maintaining a clean and healthy environment. Sold in packs of 8, it offers an economical solution for air filtration.