WHALE 1 x AquaSmart Replacement Filter. Silverised carbon filters desigend to remove unpleasant tastes and smells from your water supply. Simple to install and maintenance free . Removes unpleasant tastes and smells from water. Maintenance-free design. Simply lift out of water container and twist off - on to replace after upto 3000 litres water. Please note this is not a bacterial filter. Maximum Pressure 4 bar (60 psi) It is recommended that you change your AquaSmart water filter every 3000 litres or after approx 30 days of use as smells and debris will build up in the filter and effect the pumps performance. Allow filter to sink to bottom of water container before use.