Watch a step by step tutorial on how to replace your five stage reverse osmosis water filters and membrane. Typically the bottom three filters need to be replaced every year and the top two filters can last anywhere from three to five years. Use your TDS water testing meter to get a better understanding of when to change your RO membrane.

APEC Water Systems is a leading manufacturer specializing in building premium USA made reverse osmosis drinking water systems. Read more about us here: [ Ссылка ]

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