The SS-10 PAD, sized 9"x27", is packaged in sets of 25 by Koch Filter Corp. This filter pad is engineered for high-efficiency air filtration, suitable for both residential and commercial HVAC systems. Constructed from quality materials, it effectively captures airborne particles, improving indoor air quality. The compact size allows for easy installation in standard filter frames, making it a versatile choice for various applications. This product meets industry standards for filtration performance, ensuring reliable and long-lasting use.