The MD-20 PAD, measuring 11"x12", is a compact air filter pad from Koch Filter Corp. Designed for high filtration efficiency, this pad effectively captures dust and allergens, making it suitable for various applications. Its durable construction ensures long-lasting use, while the compact size allows for easy installation in tight spaces. Packaged in a carton of 25, it is an economical choice for maintaining air quality in both residential and commercial settings. The MD-20 PAD meets industry standards for air filtration, ensuring reliable performance.