The Waterlogic carbon polyphosphate water filter is used with water coolers that have the optional hot water tank. This water filter is ideal for the WL2500 and WL4 hot coolers if they have been fitted with a genuine Waterlogic filter head. If you don't have a waterlogic filter head, please see filter FT-0036
This filter works as a scale Inhibitor, keeping your tank in tip top condition. We recommend changing your water filters every 6 months in a large office and 12 months in a small office, depending on how often the water cooler is used.