Summit FF6-7 series is similar to our FF7 series but has a door with shelves for added convenience. Mechanically identical to the FF7 series. The FF6-7 has been used by our customers as a medical storage refrigerator for over a decade . Now the -7 series has ETL-S listing (meets NSF-7) for foodservice situations where commercial approval is needed. U.L. Listed meets ETL Sanitary Approved (to ANSI-NSF-Standard 7). All-refrigerator. Fully automatic defrost. Adjustable thermostat. Energy efficient design Adjustable shelves. Door storage for large bottles. Interior light. No internal fans. Summit hidden evaporator behind the rear wall for a cleaner interior and larger shelves. One piece seamless interior liner. 100% CFC Free. 115 Volts/ 60 hertz. 3 prong grounded cord.