Oasis P8SBF VersaFiller Water Cooler and Bottle Filler Combination This unit can be retrofitted to existing wall mount water coolers The VersaFiller alcove and activation button contain Freshield, which utilizes a silver-based antimicrobial compound This is ideal for work-place settings, schools, university locations, and any public building The VersaFiller will work on the model No. P8AC and P8ACSL wall mount water coolers