MA-4203 replacement membrane for most* Vertex PureWaterCoolers.
Use this membrane for models:
PWC-400, PWC 500, PWC-600, PWC-1000, PWC-1010, PWC-1500, PWC-2000, PWC-7000
*Does NOT fit PWC-3000
We recommend changing these filters FK-104 once every 6 months. The reverse osmosis membrane should be changed every 2 years.
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