
EcoPure EP31
Score: 75/100
Water Boss Descaler
Score: 65/100Rankings

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.

The WaterBoss Whole House Salt Free Descaler System is a compact, inline water treatment device designed to prevent scale buildup in home plumbing without using salt, chemicals, or electricity. It utilizes Scale Control Media to condition water, offering a low-maintenance alternative to traditional softeners for households with moderately hard water. Best suited for homes with space constraints and mild to moderate hardness levels.
| Attribute | ![]() | ![]() |
|---|---|---|
31,000 grainsbest | 15 grains | |
— | 7 GPMbest | |
4 personsbest | 4 personsbest | |
| ↓ lower better | 48 inches | 27 inchesbest |
| ↓ lower better | 15 inches | 8.75 inchesbest |
| ↓ lower better | 20.5 inches | 8.75 inchesbest |
10 yearsbest | 1 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 | 1 years |
Power & Compliance(2) | ||
Power Source | Electric (24V DC) | None |
Certifications | NSF/ANSI 44, 372, CSA | NSF/ANSI 42 |
Performance & Capacity(4) | ||
Grain Capacity (grains) | 31000 grains | 15 grains |
Service Flow Rate (GPM) | GPM | 7 GPM |
Resin Volume (gallons) | gallons | N/A gallons |
Operating Pressure (PSI) | 125 PSI | 20-125 PSI |
System & Control(4) | ||
Regeneration Control Type | Demand-initiated | None |
System Type | Single Tank | Salt-Free Descaler |
Salt Requirement | Low | None |
Display Type | LCD | None |
Physical & Installation(5) | ||
Height (inches) | 48 inches | 27.0 inches |
Width (inches) | 15 inches | 8.75 inches |
Depth (inches) | 20.5 inches | 8.75 inches |
Installation Type | DIY | Inline |
Weight (lbs) | 82 lbs | N/A lbs |


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