
EcoPure EP31
Score: 75/100
Aquasana SimplySoft
Score: 88/100Rankings

The Aquasana SimplySoft® 40,000 Grain Water Softener is a highly efficient, certified whole-house system designed for households up to five people, featuring metered regeneration to save salt and water. Its main limitation is a low iron reduction capacity (1 ppm) and lack of power backup. It is best suited for users with city or well water who prioritize efficiency and certified performance over high iron removal.

The EcoPure EP31 is a demand-initiated regeneration water softener designed for households of 1-4+ people, utilizing predictive technology to minimize salt and water consumption. It is NSF-certified against Standard 44 for hardness reduction and efficiency, and compatible with both municipal and private well water systems. However, its limited iron capacity and specific salt requirements may be drawbacks for some users.
| Attribute | ![]() | ![]() |
|---|---|---|
31,000 grains | 40,000 grainsbest | |
— | 11.02 GPMbest | |
4 persons | 5 personsbest | |
| ↓ lower better | 48 inches | 43 inchesbest |
| ↓ lower better | 15 inchesbest | 16 inches |
| ↓ lower better | 20.5 inchesbest | 30 inches |
10 yearsbest | 5 years | |
125 PSIbest | 20 PSI |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Build & Durability(2) | ||
Tank Material | N/A | |
Warranty Length (years) | 10 years | 5 years |
Power & Compliance(2) | ||
Power Source | Electric (24V DC) | Corded Electric |
Certifications | NSF/ANSI 44, 372, CSA | NSF/ANSI 44, CSA B483.1 |
Performance & Capacity(5) | ||
Grain Capacity (grains) | 31000 grains | 40000 grains |
Service Flow Rate (GPM) | GPM | 11.02 GPM |
Resin Volume (gallons) | gallons | N/A gallons |
Recommended Household Size (persons) | 4 persons | 5 persons |
Operating Pressure (PSI) | 125 PSI | 20-125 PSI |
System & Control(2) | ||
Regeneration Control Type | Demand-initiated | Metered |
Salt Requirement | Low | High Efficiency |
Physical & Installation(5) | ||
Height (inches) | 48 inches | 43 inches |
Width (inches) | 15 inches | 16 inches |
Depth (inches) | 20.5 inches | 30 inches |
Installation Type | DIY | Professional Recommended |
Weight (lbs) | 82 lbs | 230 lbs |


Products in the top-left offer the best value (high score, low price).

The product is positioned by Aquasana as an efficiency-focused solution, highlighted alongside the 60,000 Grain model as an option for different household sizes.
The search results do not include specific user reviews, common praise, or recurring complaints from everyday consumers. Retailer pages are referenced but do not contain review excerpts.
