VWR® Chromatography Refrigerators with Glass Doors and Natural Refrigerant, Basic. Supplier: VWR International. Description: Swing door, upright laboratory chromatography refrigerators maintain an average temperature of 3–5°C (37–41°F). Certificates. ,75794-802EA,10791-614EA,10791-628EA,10018-862EA,10018-868EA,75840-440EA,10018-858EA.