800GPD Water purifier RO water filter for home use

• Full: Indicates the pure water storage tank is full.
• Lack: Warning indicator for water shortage (low raw water supply or empty pure water tank).
3. Lower Section: Filter Life Indicators
There are four columns of horizontal bars indicating the remaining lifespan of each filter stage:
• PP: Polypropylene sediment filter (pre-filter).
• C1: Carbon block filter (removes chlorine/odor).
• RO: Reverse Osmosis membrane (the core purification stage).
• T33: Post-carbon filter (improves taste).
(Note: As the horizontal bars decrease, it indicates the filter is nearing the end of its life and needs replacement).
4. Bottom Section: Control Buttons
• Reset: Used to reset the filter life timer after replacing a filter cartridge.
• Choice: Used to select a specific filter stage to reset or to navigate menu options.