Commercial Heavy Duty Water Softening System with High Molecular Weight (HM) Plastic Valve Models PA051, PA071, PA101, PA131, PA191, PA251, and PA321 
| MODEL | A - Resin Tank Diameter | B - Resin Tank Height | C - Inlet / Outlet Height | D - Overall Height | E - Brine Tank Diameter | F - Brine Tank Height | G - Single | G - Twin |
|---|---|---|---|---|---|---|---|---|
| PA051 & PA071 | 12.3 inches | 55 inches | 58 inches | 63.75 inches | 17 inches | 38.5 inches | 36 inches | 49 inches | PA101 & PA131 | 17.6 inches | 59.5 inches | 62.5 inches | 68.25 inches | 24 inches | 50.5 inches | 48 inches | 71 inches | PA191 & PA251 & PA321 | 24 inches | 76 inches | 79.8 inches | 85.5 inches | 30 inches | 50.5 inches | 61 inches | 91 inches |