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Water Softening Sizing Guide
This chart will help you to choose a water softener size that is right for your families needs.
You will need to know a couple pieces of information prior to making a selection, such as the total number of people in the home and the total grains of hardness per gallon in your water.
Other factors also impact water softener sizing and capacities, such as number of bathrooms, laundry equipment, number of sinks and toilets, etc. These should be considered when sizing a softener.
This sizing guide is only to be used as a reference. You should contact a qualified water treatment supplier to determine your grains per gallon and what size water softener to select that meets your families needs.
| Number of People in the Household (1 - 5) |
Hardness in Grains Per Gallon (0 - 40) |
| |
0 - 10 |
11 - 15 |
16 - 20 |
21 - 25 |
26 - 30 |
31 - 35 |
36 - 40 |
| 1 |
NWS075M |
NWS075M |
NWS075M |
NWS075M |
NWS075M |
NWS100M |
NWS100M |
| 2 |
NWS075M |
NWS075M |
NWS075M |
NWS075M |
NWS100M |
NWS100M |
NWS100M |
| 3 |
NWS075M |
NWS075M |
NWS100M |
NWS100M |
NWS100M |
NWS100M |
NWS100M |
| 4 |
NWS100M |
NWS100M |
NWS100M |
NWS100M |
NWS100M |
NWS150M |
NWS150M |
| 5+ |
NWS150M |
NWS150M |
NWS150M |
NWS150M |
NWS150M |
NWS150M |
NWS150M |
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