
DuraWater Fleck 9100 SXT
Score: 88/100
Aquasure Harmony
Score: 85/100Rankings

The Fleck 9100 SXT is a dual-tank, meter-initiated water softener designed to provide continuous soft water 24/7 by alternating between two resin tanks. It regenerates automatically based on actual water usage rather than a preset timer, utilizing 8% cross-linked resin for high efficiency. The system is engineered for homes and small commercial applications requiring reliable, uninterrupted soft water delivery.

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.
| Attribute | ![]() | ![]() |
|---|---|---|
48,000 grains | 50,000 grainsbest | |
12 GPM | 15 GPMbest | |
6 personsbest | 6 personsbest | |
| ↓ lower better | 54 inchesbest | 56 inches |
| ↓ lower better | 10 inchesbest | 12 inches |
| ↓ lower better | 10 inchesbest | 12 inches |
10 yearsbest | 5 years | |
— | 40 PSIbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Build & Durability(2) | ||
Tank Material | Fiberglass | Stainless Steel |
Warranty Length (years) | 10 years | 5 years |
Power & Compliance(2) | ||
Power Source | Electric (24VAC) | Corded Electric |
Certifications | None Listed | |
Performance & Capacity(4) | ||
Grain Capacity (grains) | 48000 grains | 50000 grains |
Service Flow Rate (GPM) | 12 GPM | 15 GPM |
Resin Volume (gallons) | gallons | Fine Mesh gallons |
Operating Pressure (PSI) | PSI | 40-80 PSI |
System & Control(3) | ||
Regeneration Control Type | Meter-initiated | Metered |
System Type | Dual Tank | Single Tank with Pre-Filter |
Salt Requirement | Low | Pellet or Granular |
Physical & Installation(5) | ||
Height (inches) | 54 inches | 56 inches |
Width (inches) | 10 inches | 12 inches |
Depth (inches) | 10 inches | 12 inches |
Installation Type | Professional | Professional Recommended |
Weight (lbs) | lbs | 117 lbs |

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

Professional sources emphasize the Fleck 9100 SXT's efficiency and reliability as its primary selling points. It is repeatedly described as the ultimate in twin tank soft water systems, noted for its ability to deliver continuous soft water while minimizing salt and water usage.
The search results do not include detailed consumer reviews or user feedback from platforms like Amazon, Google Reviews, or other retail sites. However, the product marketing emphasizes user satisfaction through its simple programmability, automatic tank switching, and the peace of mind of never running out of soft water.



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.