This water cooler has a 3 stage reverse osmosis purification system. The replacement costs and part numbers are as follows:
|Reverse Osmosis Replacement Filters||Part Number||Cost|
|Carbon pre-filter||4603 K||$20.87|
|Carbon Post Filter||4603-j||$12.87|
|RO Membrane (TFC 18 GPD)||4817-6||$35.87|
Replace post and pre filters every six months or as needed. Replace membrane every 3 years for non softened water and 5 years for softened water or as needed. Reverse Osmosis System will provide up to 18 gallons of purified water per day.