OASIS® Aqua Bar™ cooler is designed to work with either your water filter system (POU1AQK and POU1AQHK) or your reverse osmosis system (PROU1AQK and PROU1AQHK). Featuring a stylish yet durable blow-molded polycarbonate cabinet, the Aqua Bar™ cooler provides a continuous water supply in three temperatures: hot, room temperature, and cold. Plus, a large reservoir eliminates a bladder tank and is easily removable for cleaning and sanitation