Comparison : Item # 2513KP, 15" Display Y-Purge Class I, Division 1 Hazardous Area Flat Panel Monitor
Item # 2516KP, 19" Display Y-Purge Class I, Division 1 Hazardous Area Flat Panel Monitor
Item # 2519KP, 21.5" Display Y-Purge Class I, Division 1 Hazardous Area Flat Panel Monitor
Item # 2613, 15" Display Y-Purge Class I, Division 1 Hazardous Area Monitor
Item # 2616, 19" Display Y-Purge Class I, Division 1 Hazardous Area Monitor