Oasis PGAC VersaCooler II Barrier-Free Non-Refrigerated Drinking Fountain, ADA, Sandstone Non-refrigerated drinking fountain - delivers ambient water (built-in 100 micron strainer stops particles before they enter the waterway) Waterways are lead-free in materials and construction Flexible, one-piece water saver bubbler guard - basin is designed to eliminate splashing and standing water High efficiency cooling system, Refrigerant R-134a, complies with ANSI 117.1 and ADA, ANSI/NSF 61 and NSF/ANSI 372 Heavy-duty galvanized steel frame, stainless steel top, 4-antimicrobial MD-Cu29 copper pads