Glass Door Coolers 401 Series glass doors Request a quote Features Economical and designed for applications requiring strong and robust doors. Door Air Shield Technology for advanced Anti-condensate Sweat Protection. 2-PANE, 3-PANE, non-heated, Low E glass with argon gas options available. Heated Door & Frame Rail for Low Temp applications. Hold-open feature for easy stocking and gives shoppers easy access to merchandise. 87° Door stop feature limits how far the door opens to minimize impact with adjacent doors and shoppers. Energy-saving Optimax 7 Series Low Power LED lights for enhanced illumination. Options and upgrades Matching Pass-Thru Door Available Anti-Fog Various Lock Options Gravity Flow Shelving Gravity Flow Merchandising Roll-A-Way Cart Options Request a quote today for a custom walk-in refrigeration solution for your business. Request a Quote