The SS-10 PAD, sized 21"x47", is available in a convenient pack of 25 from Koch Filter Corp. This filter pad is specifically designed for high-performance air filtration, suitable for a range of HVAC systems. Its robust construction ensures longevity and efficiency in capturing dust and allergens, contributing to improved air quality. The dimensions are optimized for easy integration into existing filter setups, making it a practical choice for both commercial and residential applications. Adhering to industry standards, this product guarantees reliable filtration performance.