The Aquasana EQ-600R Whole House Filter Replacement tank reduces 97% of the chlorine coming into your home through the municipal water supply. The Rhino EQ-600R's dual-chamber filtration optimizes contaminant reduction: the top tank contains a blend of copper-zinc oxidation media and crushed mineral stone to reduce chlorine and balance the pH; and the bottom tank contains a high-grade activated carbon for final reduction of chlorine and other contaminants. Enjoy great-tasting and odor-free filtered water from every tap or shower in your home. The Aquasana Whole House replacement filter is NSF certified to standard 42. Unlike water softeners, the EQ-600 does not require salt or back-flushing to operate. The filtration tanks last for six years or 600,000 gallons. Compare to Culligan and other water softeners, and you'll see why the reviews agree that Aquasana has great filtration technology at a great value. BREATHE EASY with cleaner, healthier air. Chlorine and volatile organic chemicals (VOCs) can evaporate in shower steam, contaminating the air you breathe. Instantly improve your indoor air quality by filtering the water throughout your home. FULL SYSTEM NSF CERTIFIED TO REMOVE 97% OF CHLORINE. Only the best whole house systems on the market can boast full system NSF Certification. The EQ-600 Rhino is NSF tested and certified to remove 97% of chlorine for 600,000 gallons or 6 years. Full system NSF Certification guarantees: Structural integrity of the entire system certified to NSF performance standards, ensuring the quality of your entire system and not just the filtration media. System is independently tested by NSF International to the gold standard of water filtration. Compare to Pelican Water, Express Water, SpringWell Water Filtration Systems, Ne Aqua Systems, Bluonics, Hardless NG, Culligan, APEC Water Systems, iFilters, & More!