Mfr # S90479. The replacement keys come in a set of 2 and fit the Monitor 2000 Germicidal Cabinet (S90494). The Monitor 2000 Germicidal Cabinet is specially designed for educational and medical industry applications. The keys can be used to lock the cabinet and protect the safety glasses and goggles to ensure they remain in good shape and are sanitized for the next person to use. The Monitor 2000 Germicidal Cabinet is sold separately. Founded in 1923, Sellstrom Manufacturing Co., is one of the oldest American brands of safety products. From safety goggles to face shields and more, our long history in pioneering industry-leading personal protective products means our equipment is designed with your safety and productivity in mind. Today, we are synonymous with the best in head, eye, face, hearing, knee and welding protective products that deliver safety, productivity, comfort and peace of mind. d.