Middle Atlantic Essex Solid Door, 10 RUThe Middle Atlantic Essex Solid Door for Essex MMR Series and QAR Series delivers rugged protection with seamless integration into front and rear configurations. Built to complement the precision of the Essex family, this 10 RU solid door blends security, durability, and professional aesthetics for broadcast, post production, studio, and data center environments. Designed to fit seamlessly with Essex MMR Series and QAR Series enclosures, it preserves