Cost Effective Easy to Install Optimal performance Cartridge lasts from 3 to 6 months, dependent on hard water area Reduces sediment, odours & unpleasant tastes Cartridge is ONLY compatible with ASIN B0781TBLXN - BWT BWTDWFK-TRI FLO Premium Drinking Water Filtration System. They are not compatible with other systems. Easy to replace, 5 stage filtration cartridge for BWT Premium Drinking Water System. Replace every 3 - 6 months, dependant on local water hardness quality.
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