... Cold Water Dispenser *Water cooler dispenser for school,factory,construction site *RO filter,hot cold TB3000-3 Stainless Steel ... Hot and Cold Water Dispenser1. Stainless steel free standing drinking purification2. built-in Reverse Osmosis water dispenser ... removing sands, rust and inedible materials, and killing bacteria.3. Multi-stage UF filtration system optional4. Hot storage and ...