1. Certified against NSF/ANSI 53, 42, 372 to filter out 99.9% of Chlorine, 99.6% of Lead, 89.3% of Mercury.
2. 0.5 Micron inner layer is effective against 99.99%Chlorine and meets Particular Reduction Class I standard. This filter retains beneficial minerals in water which is good to health.
3. Widely compatible with General electric XWF, WD-XWF, MB-XWF, AQF-XWF, FL-RF48, WS648A, CF9, PF9, GF-XWF fridge cartridge.
4. Our filters do not lower the TDS value because it filters out heavy metals while keeping beneficial minerals.


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