Aquasure scores 5.7 across 30 products; Aquasana scores 5.8 across 18. They overlap in whole house. That is 23% of what Aquasure sells and 39% of what Aquasana sells. Aquasure leads on value, Aquasana on certification coverage.
Across everything we scored, Aquasana edges ahead by 0.12 — too close to call.
Both brands also sell into Reverse Osmosis, Countertop, Under Sink, Well Water, and Shower & Faucet. Neither side carries enough scored products there for a median we would publish, so this comparison does not cover them.
Too close to call
has the edge · 5.8 vs 5.7
Aquasana is ahead by a nose: 0.12 points, less than a score moves between two sizes of the same system. The trade-offs below decide it.
Pick Aquasure when
Value matters most7.0vs3.5
Pick Aquasana when
Certification coverage matters most7.0vs2.0
What only Aquasure sells — and only Aquasana
Not a loss for either brand. If you need one of these, the choice is already made.
Median scores on a 0–10 scale. Each row is one criterion.
Certification Coverage
+5.0 Aquasana
Aquasure
2.0
Aquasana
7.0
Aquasure Not certified (30); Aquasana NSF/ANSI 61 (8).
Value
+3.5 Aquasure
Aquasure
7.0
Aquasana
3.5
Aquasure 5.0–10.0 vs Aquasana 2.0–8.0.
Contaminant Reduction
+2.0 Aquasana
Aquasure
6.0
Aquasana
8.0
Aquasure 3.0–8.0 vs Aquasana 6.0–10.0.
Ease of Installation
+2.0 Aquasure
Aquasure
7.0
Aquasana
5.0
Aquasure 4.0–10.0 vs Aquasana 4.0–10.0.
Flow Rate
+1.0 Aquasure
Aquasure
6.0
Aquasana
5.0
Aquasure: 21 of 30 scored products carry this criterion.
Warranty & Support
+1.0 Aquasure
Aquasure
4.0
Aquasana
3.0
Aquasure 5 Years (13); Aquasana 1 Year (8).
Filter Life
tied
Aquasure
5.0
Aquasana
5.0
Aquasure 2.0–6.0 vs Aquasana 2.0–5.0.
Build Quality
tied
Aquasure
6.0
Aquasana
6.0
Aquasure 4.0–8.0 vs Aquasana 6.0–8.0.
The scores above are our reading of the evidence below. This is the evidence.
Certifications are recorded per product as published by the manufacturer. Anything carrying a NSF/ANSI standard can be checked against NSF's own certified product listings.
Certifications held
Aquasure
30of 30
Not certified30
Aquasana
18of 18
NSF/ANSI 618
NSF/ANSI 4018
NSF/ANSI 538
NSF/ANSI 426
NSF/ANSI P4735
Warranty terms
Aquasure
30of 30
5 Years13
1 Year11
3 Years6
Aquasana
18of 18
1 Year8
10 Years5
2 Years3
5 Years2
What Aquasure and Aquasana owners report
Independent sources pooled per brand. Each row is one source.
N of M = how many scored products carry the brand-level reading shown, out of all scored.
Owner reviews
+3.0 Aquasure
Aquasure
8.0
Aquasana
5.0
Aquasure: 2 of 30 scored products carry this reading; Aquasana: 2 of 18 scored products carry this reading.
Source details
Aquasure
Home Depot holds native Aquasure pools at 4.5 of 5 from roughly 1,070 reviews on the Harmony softeners, 4.6 from 126 on the Fortitude V2 pre-filter and 4.9 from 16 on the million-gallon Fortitude Pro tank, all with verified-purchase entries and Aquasure replying under its own support address.
None of them describes this product: no retailer listing was found for the Dash countertop line at Home Depot, Lowe's or Walmart.
Scored down accordingly, and it should be read as evidence about the company rather than about this filter.
Brand rollup across scored products.
2 of 30 scored products carry this reading
Aquasana
No retailer lists HealthShield, so the figure is the brand's third-party profiles, and two independent ones agree.
Trustpilot reads 1.5 out of 5 from 172 reviews distributed 77 percent one-star against 8 percent five-star, with 39 of them inside the past twelve months
The profile has been claimed since 2021, shows no recent history of the company inviting reviews, and Aquasana has replied to 100 percent of the negatives.
The Better Business Bureau carries 1.42 from 33 customer reviews on a non-accredited file alongside an A+ letter rating, which measures complaint handling rather than satisfaction.
Both profiles are unsolicited and self-select toward complainants, and the brand's retailer listings run far higher, so this is a floor on service sentiment rather than a verdict on the hardware.
Brand rollup across scored products.
2 of 18 scored products carry this reading
YouTube
+1.0 Aquasure
Aquasure
6.0
Aquasana
5.0
Aquasure: 3 of 30 scored products carry this reading; Aquasana: 2 of 18 scored products carry this reading.
Source details
Aquasure
Independent Aquasure video coverage is the Harmony softener range, including owner reviews at one year and two years.
The countertop review channels that lab-test this category regularly do not cover the Dash line at all.
Brand rollup across scored products.
3 of 30 scored products carry this reading
Aquasana
Independent video coverage of Aquasana is substantial and every tested system is a Rhino, a Claryum, a countertop or a SmartFlow.
No video covers HealthShield at product, line or brand level.
The only HealthShield footage on the platform is Aquasana's own two launch videos, at 267 and 101 views, and they are first-party and excluded.
One brand-tagged creator short exists whose channel and date could not be established.
Scored down for describing different hardware.
Brand rollup across scored products.
2 of 18 scored products carry this reading
Amazon
+1.0 Aquasana
Aquasure
5.0
Aquasana
6.0
Aquasure: 1 of 30 scored products carry this reading; Aquasana: 2 of 18 scored products carry this reading.
Source details
Aquasure
Aquasure's Amazon storefront has no compact under-sink section and no listing for this system exists.
Amazon publishes a brand-insights panel for Aquasure - 4.5 from 5,000-plus customer ratings with 10,000-plus orders in the trailing three months - and that is the brand-scope figure this row falls back to.
A brand figure collected on whole-house softeners and 4.5-inch filter housings is remote evidence for a compact point-of-use filter.
Brand rollup across scored products.
1 of 30 scored products carry this reading
Aquasana
Neither WH-HS nor WH-HS-UVM has an Amazon listing - a marketplace search on the product name returns the Rhino range and competing brands, and a search on the model code returns no products at all, so this is an absent listing rather than a listing with no ratings.
The brand panel is the fallback and it renders in both of its forms across Aquasana's listings: the scoreable proportion reading is 80 percent of brand ratings at 4-plus stars over 50,000-plus orders in the trailing three months, and the badge reading on the same ASINs gives 10,000-plus raters with no denominator.
Scored down twice for scope: the panel is collected across cartridges, shower filters and under-sink units, and this is a platform sold direct only.
Brand rollup across scored products.
2 of 18 scored products carry this reading
Reddit
tied
Aquasure
5.0
Aquasana
5.0
Aquasure: 2 of 30 scored products carry this reading; Aquasana: 2 of 18 scored products carry this reading.
Source details
Aquasure
R/WaterTreatment discussion of Aquasure centres on the softeners.
Nothing specific to the Fortitude Compact was located across brand and model-number queries, and the subreddit's under-sink discussion runs to RO systems rather than inline carbon filters.
Brand rollup across scored products.
2 of 30 scored products carry this reading
Aquasana
Aquasana is discussed across roughly thirty distinct events on r/WaterTreatment, r/HomeImprovement, r/Plumbing, r/water and r/BuyItForLife, and the split is consistent: owners are positive on taste and clarity and negative on reliability.
Leaks are the brand's signature failure mode and carry nine independent threads, including a three-year-old whole-home post-filter housing that split along a manufacturing seam and flooded a basement, and a T-pipe fitting failure that became a water-damage claim.
Pressure loss carries six threads and filter-replacement cost another six.
Neutral and adversarial framings both run.
Scored down twice: the pool describes different hardware, and no thread discusses this system.
Brand rollup across scored products.
2 of 18 scored products carry this reading
Google
tied
Aquasure
6.0
Aquasana
6.0
Aquasure: 4 of 30 scored products carry this reading; Aquasana: 2 of 18 scored products carry this reading.
Source details
Aquasure
Modernize and Quality Water Lab cover Aquasure through the Harmony softeners.
Dominick Plumbing notes the absence of NSF certification across the brand.
No third-party review of the Premier RO systems exists.
Brand rollup across scored products.
4 of 30 scored products carry this reading
Aquasana
Nothing independent covers this platform.
The only writing about it is Aquasana's own launch release, which states the system is certified to NSF/ANSI 53 and 401 for PFAS, VOCs, BPA and ibuprofen and adds, in its own words, that it is internally tested to reduce 97.4 percent of chlorine and chloramines - so the two headline percentages are the brand's own and sit outside the certified set.
A certifier row readable through a third party confirms Standard 53 for five named PFAS compounds plus chloroform as a VOC, at 5.7 gpm over 165,000 gallons, and carries a pretreatment condition that influent aluminium must be reduced before treatment.
The 401 and CSA B483.1 rows could not be confirmed at a certifier source.
Brand rollup across scored products.
2 of 18 scored products carry this reading
Best Aquasure vs best Aquasana, category by category
The three best-scoring products each brand sells in every category they both compete in, ranked by overall score.
Independently lab-tested at 100% reduction of chlorine and of all three detected disinfection byproducts
Tested to NSF/ANSI Standard 42 for up to 97% chlorine reduction
1,000,000 gallon or 10-year capacity, the longest interval in its price class
Independent certification covers chlorine; the wider 78-contaminant list is not separately certified
Aquasure vs Aquasana: the numbers
5.7
Overall
Usability5.0
Social6.2
Products scored30 of 30
Price range$35 – $1,850
5.8
Overall
Usability5.8
Social5.8
Products scored18 of 18
Price range$120 – $6,640
Aquasure vs Aquasana: common questions
Is Aquasure or Aquasana better?
Aquasure 5.7 from 30 scored products; Aquasana 5.8 from 18. Too close to call overall: Aquasana has the edge by 0.12, which is inside the margin, so the difference is in the criteria.
What is the biggest difference between Aquasure and Aquasana?