Compare Water Softeners

Cabinet Models

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Model Maximum Capacity (grains) Valve and Connection Size Rated Service Flow Rate (gpm) Rated Clearwater Iron Removal (ppm) Efficiency (grains removed per lb. of salt)
NSC15ED 15,700 Standard 1″ 5.3 4 4,160
NSC25ED 26,600 Standard 1″ 6 7 5,000
NSC30UD 30,200 Standard 1″ 7.3 8 5,120
NSC30UD1 34,300 High Flow 1″ 7.5 5 5,030
NSC40UD1 39,000 High Flow 1″ 10 5 5,100
Two-Tank Models
Model Maximum Capacity (grains) Valve and Connection Size Rated Service Flow Rate (gpm) Rated Clearwater Iron Removal (ppm) Efficiency (grains removed per lb. of salt)
NST25ED 26,600 Standard 1″ 6 7 5,000
NST30UD 30,200 Standard 1″ 7.3 8 5,120
NST45UD1 45,400 High Flow 1″ 10 12 5,120
NST70UD1 70,000 High Flow 1″ 13.5 19 5,110
Water Softeners Warranty from date of installation
Model NSC25ED NST25ED NSC30UD NSC30UD1, NSC40UD1, NST45UD1, NST70UD1 NSC15ED
Complete Unit 1 Year 1 Year 1 Year 1 Year
Electronic Control Board 3 Years 3 Years 3 Years 3 Years
Control Valve 3 Years 3 Years 3 Years 3 Years
Salt Storage Tank 10 Years* 10 Years* 10 Years* 10 Years*
Mineral Tank 10 Years 10 Years 10 Years 10 Years

*For units installed prior to 2007, the Salt Storage Tank Warranty was 5 years.