Direct Replacement: This air filter is a direct replacement for Bunn part number 28122.0000, manufactured with the exact specifications. Compatibility: Direct replacement for Bunn CDS-2 and Ultra-2. High Quality Replacement: This air filter prevents contaminates such as dirt and dust from getting into the Bunn drink dispenser, providing durable, long-lasting performance. Peak Performance: Keep your Bunn coffee brewers, frozen beverage dispensers, hot water, and tea machines running and peak performance. OCS Parts provides nearly every component you need to keep your Bunn beverage dispenser operating at peak efficiency. OCS Parts Assured Quality: At OCS parts, our products undergo meticulous examination to ensure unmatched performance and reliability. Trust OCS Parts for genuine, direct sourcing, and secure packaging, delivering a product that meets the highest standards of quality and customer satisfaction. OCS Parts brings you a direct Air Filter replacement for Bunn frozen drink machines. Built to exact specifications, constructed of high quality material to ensure performance and longevity.