| Iron & Hardness Well System — Autotrol (Premium) | watersoftenerplus.com | 2429 USD | 4,443 USD | −33.2% |
| Iron, Sulfur & Odor Well System — Air-Injection (Chemical-Free) | watersoftenerplus.com | 2429 USD | 3,888 USD | −23.6% |
| Iron & Hardness Well System — Air-Injection (Chemical-Free) | watersoftenerplus.com | 2514 USD | 3,554 USD | −16.5% |
| Well Bacteria UV System — Complete Disinfection | watersoftenerplus.com | 1126 USD | 1,777 USD | −8.5% |
| WSP 300,000 Grain Water Softener - Commercial | watersoftenerplus.com | 23800 USD | — | — |
| WSP 15000 GPD Reverse Osmosis System - 4x40" | watersoftenerplus.com | 23136.25 USD | — | — |
| WSP 15000 GPD Reverse Osmosis System | watersoftenerplus.com | 23136.25 USD | — | — |
| WSP 15000 GPD Reverse Osmosis System - Mmbrn Cntrl, 4x40" | watersoftenerplus.com | 22720 USD | — | — |
| WSP Whole House Reverse Osmosis System - Commercial, Industrial | watersoftenerplus.com | 17416.25 USD | — | — |
| WSP Whole House Water Softener - Skid-Mounted, Commercial | watersoftenerplus.com | 16715.47 USD | — | — |
| WSP 12500 GPD Reverse Osmosis System - Mmbrn Cntrl, 4x40" | watersoftenerplus.com | 16070 USD | — | — |
| WSP 120 cu. ft. Whole House Water Softener - Commercial | watersoftenerplus.com | 16052 USD | — | — |
| WSP 12500 GPD Reverse Osmosis System - 4x40" | watersoftenerplus.com | 15861.25 USD | — | — |
| WSP 12500 GPD Reverse Osmosis System | watersoftenerplus.com | 15711.25 USD | — | — |
| WSP 000 GPD Reverse Osmosis System - Commercial | watersoftenerplus.com | 15658 USD | — | — |
| WSP 120,000 Grain Twin-Tank Water Softener | watersoftenerplus.com | 14592.5 USD | — | — |
| WSP 10000 GPD Reverse Osmosis System - Four Membranes, 4x40" | watersoftenerplus.com | 14548.75 USD | — | — |
| WSP 10000 GPD Reverse Osmosis System - 4x40" | watersoftenerplus.com | 14548.75 USD | — | — |
| WSP 150,000 Grain Whole House Water Softener - Commercial | watersoftenerplus.com | 13640 USD | — | — |
| WSP 300,000 Grain Twin-Tank Water Softener | watersoftenerplus.com | 11451.82 USD | — | — |
| WSP Valve Timer - Brine Capacity | watersoftenerplus.com | 11353.75 USD | — | — |
| WSP Valve Timer - Channel Injector Brine Capacity | watersoftenerplus.com | 11353.75 USD | — | — |
| WSP Reverse Osmosis Valve Head - VH-1600G | watersoftenerplus.com | 10253.25 USD | — | — |
| WSP Skid-Mounted System - SK-SKID48FGSI | watersoftenerplus.com | 10199.75 USD | — | — |
| WSP Skid-Mounted System - SK-SKID36STLT | watersoftenerplus.com | 9816.25 USD | — | — |
| WSP Reverse Osmosis System | watersoftenerplus.com | 9599.82 USD | — | — |
| WSP 210,000 Grain Softener Control Valve - Commercial | watersoftenerplus.com | 9420 USD | — | — |
| WSP Twin-Tank Water Softener - TT-SKID48STLT | watersoftenerplus.com | 9352.83 USD | — | — |
| WSP Control Valve (WSP-CV-3900) | watersoftenerplus.com | 9350 USD | — | — |
| WSP Skid-Mounted System - Steel Tanks Triplex | watersoftenerplus.com | 9232.27 USD | — | — |
| WSP Twin-Tank Water Softener - Commercial | watersoftenerplus.com | 9174.95 USD | — | — |
| WSP Reverse Osmosis System - Commercial | watersoftenerplus.com | 9104.67 USD | — | — |
| WSP Twin-Tank Water Softener - Ski | watersoftenerplus.com | 8970.71 USD | — | — |
| WSP 7500 GPD Reverse Osmosis System - 4x40" | watersoftenerplus.com | 8673.75 USD | — | — |
| WSP 7500 GPD Reverse Osmosis System | watersoftenerplus.com | 8673.75 USD | — | — |
| WSP Reverse Osmosis System - 220V, 4x40" | watersoftenerplus.com | 8582.35 USD | — | — |
| WSP Water Treatment System - 4x40" | watersoftenerplus.com | 8582.35 USD | — | — |
| WSP 120,000–600,000 Grain Whole House Water Softener - Commercial | watersoftenerplus.com | 8428 USD | — | — |
| WSP 210,000 Grain Twin-Tank Water Softener | watersoftenerplus.com | 8401.46 USD | — | — |
| WSP Whole House Chlorination System - Complete, Well Water | watersoftenerplus.com | 8087.5 USD | — | — |