
EcoPure EP31
Score: 75/100
Aquasure Harmony
Score: 85/100Rankings

The Aquasure Harmony Series 50,000 Grains is a robust whole-house water softener designed for larger households with 4-6 bathrooms, featuring a high flow rate and integrated pre-filtration. Its main trade-off is high water consumption during regeneration cycles and a reliance on external power. It is best suited for users with well water needing iron reduction and those seeking comprehensive contaminant removal alongside softening.

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 | 50,000 grainsbest | |
— | 15 GPMbest | |
4 persons | 6 personsbest | |
| ↓ lower better | 48 inchesbest | 56 inches |
| ↓ lower better | 15 inches | 12 inchesbest |
| ↓ lower better | 20.5 inches | 12 inchesbest |
10 yearsbest | 5 years | |
125 PSIbest | 40 PSI |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Build & Durability(2) | ||
Tank Material | Stainless Steel | |
Warranty Length (years) | 10 years | 5 years |
Power & Compliance(2) | ||
Power Source | Electric (24V DC) | Corded Electric |
Certifications | NSF/ANSI 44, 372, CSA | None Listed |
Performance & Capacity(5) | ||
Grain Capacity (grains) | 31000 grains | 50000 grains |
Service Flow Rate (GPM) | GPM | 15 GPM |
Resin Volume (gallons) | gallons | Fine Mesh gallons |
Recommended Household Size (persons) | 4 persons | 6 persons |
Operating Pressure (PSI) | 125 PSI | 40-80 PSI |
System & Control(4) | ||
Regeneration Control Type | Demand-initiated | Metered |
System Type | Single Tank | Single Tank with Pre-Filter |
Salt Requirement | Low | Pellet or Granular |
Display Type | LCD | Digital |
Physical & Installation(5) | ||
Height (inches) | 48 inches | 56 inches |
Width (inches) | 15 inches | 12 inches |
Depth (inches) | 20.5 inches | 12 inches |
Installation Type | DIY | Professional Recommended |
Weight (lbs) | 82 lbs | 117 lbs |


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

The search results do not contain detailed professional reviewer evaluations or expert assessments comparing this model's performance against industry standards. While the product is marketed as professional grade, independent professional reviews are not available in the provided sources.
Users generally praise the system for making laundry and cleaning easier, noting brighter laundry and cleaner dishes, with long-term benefits like smoother skin.