The RO membrane removes dissolved salts, heavy metals, and contaminants, reducing TDS from raw levels to safe drinking standards. The 6-stage system ensures multi-layer protection across sediment, chemical, and microbial contaminants. Rated to handle source TDS up to 2000 ppm, suitable for both municipal and borewell water sources. Overflow protection circuits safeguard the pump and membrane from dry-run and overpressure damage.