Warranty & Support
+5 SoftProAquasure Harmony 64K: 5 Years · SoftPro ECO City: Lifetime.
Product comparison · Water Softeners
Aquasure Harmony 64K vs SoftPro ECO City
The Aquasure Harmony 64K scores 6.3 and ranks 5th of 40 in Water Softeners; the SoftPro ECO City scores 5.8 and ranks 13th of 40 in Water Softeners. The ECO City leads on warranty & support.
6.3
5.8
All 14 SoftPro Water Systems products 
SoftPro ECO City
$967 · 13th of 40 in Water Softeners
- Warranty & Support — 10 against 5
Across everything we scored, Aquasure Harmony 64K sits 0.56 ahead.
Verdict
Harmony 64K ahead · +0.56 (6.3 vs 5.8)Pick the Aquasure Harmony 64K when
Price matters$750vs$967
Pick the SoftPro ECO City when
Warranty & support matters10vs5
Ease of installation matters8vs7
Contaminant reduction matters7vs6
Where the Aquasure Harmony 64K and SoftPro ECO City differ
Scores on a 0–10 scale. Each row is one criterion, biggest difference first.
Contaminant Reduction
+1 SoftProBuild Quality
+1 SoftProEase of Installation
+1 SoftProCertification Coverage
tiedFilter Life
tiedValue
tiedFlow Rate
one side unscoredWhat Aquasure Harmony 64K and SoftPro ECO City owners report
Independent sources, scored for each model. Harmony 64K on 5 of five, ECO City on 4.
The Aquasure Harmony 64K reading covers its product line; the SoftPro ECO City reading covers the whole brand.
What they say
Aquasure Harmony 64K
- r/WaterTreatment and r/WaterSofteners carry a dozen live Aquasure threads and nearly all of them concern the Harmony softeners.
- Owners report straightforward DIY installation, hardness falling to zero grains and low salt consumption.
- The adversarial side is specific and it lands on this size: one thread describes a resin cartridge rupture on a 64,000 grain fine mesh unit bought through Amazon, and a second describes a Harmony resin tank basket failing and discharging beads into house plumbing.
- The standing objection is that the hardware is made in China against a Fleck or Pentair valve; the standing defence is that spare parts are cheap and Aquasure publishes repair videos for most faults.
SoftPro ECO City
- Six threads carry the pool across r/Plumbing and r/WaterTreatment.
- Comment on the engineering is broadly favourable and one owner on 174 gpg water reports an Elite working well.
- The complaints are consistently about the company rather than the equipment: shipping delays, warranty terms described as confusing, and post-sale service.
- One incident, a defective unit shedding media into household fixtures after professional installation, appears as two separate threads in two subreddits and is one event rather than two reports.
The Aquasure Harmony 64K reading covers the whole brand; the SoftPro ECO City reading covers its product line.
What they say
Aquasure Harmony 64K
- Modernize's 2026 review rates the Harmony line well on softening performance and value while flagging an opaque four-button interface, minor installation leaks and control head reliability after a few years.
- Quality Water Lab scores the 48,000 grain unit 4.5 of 5.
- Dominick Plumbing notes the absence of NSF/ANSI 44 certification.
- TrustWaterWell names the fine mesh Harmony its top retail pick for well water.
SoftPro ECO City
- Independent testing of SoftPro softeners covers the Elite rather than the ECO.
- WaterFilterGuru measured better than 99 percent calcium and magnesium reduction on a 120 ppm private well and ranked it second among salt-based softeners; Quality Water Lab rates the same system 4.5 out of 5 and measured a steady 14 to 15 GPM, a figure SoftPro publishes for no system in its range.
YouTube
tiedThe Aquasure Harmony 64K reading covers its product line; the SoftPro ECO City reading covers its product line.
What they say
Aquasure Harmony 64K
- One independent review covers this 64,000 grain model specifically, alongside independent long-term owner reviews of the Harmony line at one year and two years, both reporting no failures.
- Aquasure's own channel is the manufacturer's and is not counted, and the 2025 and 2026 best-softener roundups are affiliate listicles rather than testing.
SoftPro ECO City
- Video coverage of SoftPro softeners is an unsponsored Elite install-and-test at roughly 22,000 views with post-install laboratory results, plus a six-softener comparison placing the Elite second.
- Nothing covers the ECO.
- SoftPro's own channel is excluded.
Amazon
one side unscoredThe Aquasure Harmony 64K reading covers its product line; no usable source for the SoftPro ECO City.
What they say
Aquasure Harmony 64K
- The Harmony digital-metered listing reads 4.4 of 5 from 3,177 ratings, seventh in Amazon's water softener category, and the identical 4.4 from 3,177 prints on both the 32,000 and the 48,000 grain ASINs with review bodies on one page tagged as reviews of the other size - one review file across the whole size range.
- No 64,000 grain figure exists separately from the family file, so this is the digital-metered line rather than this capacity.
SoftPro ECO City
No usable source.
Owner reviews
+3 AquasureThe Aquasure Harmony 64K reading covers its product line; the SoftPro ECO City reading covers the whole brand.
What they say
Aquasure Harmony 64K
- Home Depot reads 4.5 of 5 from roughly 1,073 reviews across the Harmony digital-metered softeners, and the near-identical count on the 32, 48 and 64 thousand grain listings shows one shared review file rather than three separate ones.
- The pool is native: entries carry Home Depot verified-purchase marks, and the recurring line about not accepting feedback from the product manufacturer is Home Depot's moderation notice rather than a syndication badge.
- The pre-filter bundle version of this softener sits lower at 4.3 from 671.
- Walmart shows 4.5 from 126 on the family; its 4.1 from about 52 is a seller rating for AquasureUSA and is excluded.
- Complaints cluster on shipping damage, control head leaks at start-up and programming.
SoftPro ECO City
- Six independent third-party profiles cover this operator and every one lands between 2.5 and 3.8.
- Trustpilot reads 3.8 from 14 for softprowatersystems.com, all fourteen inside the past twelve months, and the shape matters more than the average: 72 percent five-star against 21 percent one-star with nothing at all in the four and two bands.
- A second Trustpilot profile for qualitywatertreatment.com, the same operator, reads 3.3 from 29 with only two in the past twelve months.
- BestCompany reads 3.7 from 37, Yelp 2.5 from 31, and the BBB carries two separate non-accredited profiles for the same business alongside a complaints file.
- ConsumerAffairs holds dated verified-purchase reviews, several of them raised after the company intervened.
- The complaint is the same everywhere and it is never the hardware: Trustpilot's own top mentions are customer communications, warranty, delivery service and refund.
- Several of the five-star entries name competitor model numbers and prices and read in marketing register rather than owner register.
- The 8,000-plus figure on SoftPro's own pages is its own widget.
Aquasure Harmony 64K vs SoftPro ECO City: pros and cons
What each one does well, and where it falls short.
Pros 5
Rated 20 GPM, the highest service flow of any single-tank Aquasure softener
Two cubic feet of resin stretches the regeneration interval and reduces salt cost per gallon softened
Metered demand-initiated regeneration rather than a timer
Five year warranty on registration, serviceable by any qualified plumber
Price per grain is the lowest in the Harmony range
Cons 6
No NSF/ANSI 44 certification: Aquasure confirms this directly in its own product Q and A
Regeneration consumes 50 to 75 gallons per cycle, which is worth checking against a septic system
Same opaque four-button control head as the smaller models
Brine tank capacity does not scale with the larger resin bed, so refills come more often
Removes hardness only. No chemical, iron or PFAS reduction on Aquasure's own spec sheet
Aquasure publishes no tank dimensions, which matters for a unit this size
Pros 5
Lifetime warranty on both the mineral tank and the brine tank
Ten-year warranty on the programmable control valve
8 percent crosslink resin rated by SoftPro for up to twenty years
Upflow metered regeneration with a 48-hour capacitor settings backup
Roughly $400 below the Elite at the same grain capacity
Cons 5
SoftPro publishes no rated service flow rate for this system
3/4 inch ports where the Elite range uses 1 inch
No NSF or WQA performance certification exists under the SoftPro name
Permanent compare-at pricing: the $1,628.65 list figure is never charged
The 48,000 grain variant shares SKU 941345 with the ECO Well listing
Aquasure Harmony 64K vs SoftPro ECO City: the numbers
Price, scores and rank, then only the specs that differ. Green marks the side with more.
6.3
5th of 35 in Water Softeners
SpecAquasure Harmony 64KSoftPro ECO City
Flow rate15-25 GPMNot listed
Warranty5 YearsLifetime
Connection3/4 in, 1 in3/4 in
DimensionsNot listedNot listed
Weight149 lb (shipping)Not listed
Made inNot listedUSA
Same on both
- Filtration Ion Exchange Softener
- Removes Calcium, Magnesium, Scale, Hardness
- Certifications Not certified
- Filter life Not consumed
- Housing Not specified
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What’s different
- Flow rate: 10-15 GPM, not 15-25 GPM
Pick it ifEase of installation matters8vs7
What’s different
- Flow rate: Not published, not 15-25 GPM
- Filtration: adds Granular Activated Carbon, KDF +2 more
Pick it ifValue matters9vs7
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What’s different
- Nothing we record differs.
Pick it ifContaminant reduction matters8vs7
What’s different
- Flow rate: 15-25 GPM, not Not published
- Filtration: adds Salt-Free Conditioner
Pick it ifFilter life matters7vs3
Aquasure Harmony 64K vs SoftPro ECO City: common questions
Is the Aquasure Harmony 64K better than the SoftPro ECO City?
On our scores, the Aquasure Harmony 64K is ahead, 6.3 against 5.8. The SoftPro ECO City leads on warranty & support (10 against 5), contaminant reduction (7 against 6), build quality (7 against 6) and ease of installation (8 against 7).
Which is cheaper, the Aquasure Harmony 64K or the SoftPro ECO City?
The Aquasure Harmony 64K, at $750 against $967: $217 less.
Which has the longer warranty, the Aquasure Harmony 64K or the SoftPro ECO City?
The SoftPro ECO City: Lifetime, against 5 Years.
What do owners say about the Aquasure Harmony 64K and the SoftPro ECO City?
Across 4 independent sources scored for both, the Aquasure Harmony 64K is ahead on Reddit, Google and Owner reviews; YouTube is level.
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Scores calculated 16 September 2026 · Products excluded where fewer than two independent sources cover them · How we score