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Soft: 0-60 mg/L or 0-3.5 grains per gallon (gpg).
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Moderately hard: 61-120 mg/L or 3.5-7 gpg.
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Hard: 121-180 mg/L or 7-10.5 gpg.
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Very hard: Over 180-250mg/L or over 10.5 gpg.
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Extremely hard: Over 250mg/l or over 15 gpg.
Model: NSCWHC
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2-in-1 Softener + Whole Home Filtration With Wi-Fi
Upgrade $XX.XX
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