Accucold 24" Wide Built-In Healthcare Refrigerator, Certified to NSF/ANSI 456 Vaccine Storage StandardDESCRIPTION EQTemp by Accucold introduces a new series of NSF ANSI 456 certified refrigeration designed to store a variety of materials in healthcare facilities. Model ACR51WNSF456 is an upright 3. 88 cu. ft. all refrigerator. It features a clean white exterior and a blue accented control panel. The solid door is equipped with a self closing mechanism to help protect stored items from being overexposed to room temperature. A factory installed lock