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Comparison · Updated Oct 31, 2026

SpringWell vs. Aquasana for well water

They solve different problems. SpringWell's WS is an iron, sulfur and manganese filter; Aquasana's Rhino Well is a carbon filter with a UV stage. Your water test decides, not the brand.

All facts from the brands' own pages and NSF's listings, read on Oct 31, 2026. We haven't installed either system. How we review

We may earn a commission if you buy through our links. It doesn't change the comparison.

The one-line answer

Start from your lab results.

  • Iron, manganese or rotten-egg smell? SpringWell WSwithin its limits, not Aquasana1, 3, 16
  • Low iron and hardness, want taste/odor/chemical filtration and a UV safeguard, smaller home? Aquasana Rhino Wellsized for up to 2.5 bathrooms2
  • Bacteria in your test? Neither alonefix the source, then use disinfection certified to NSF/ANSI 55 Class A4, 15

Side by side

Our upkeep arithmetic for Aquasana uses the standard pre-filter and no subscription.

Main job1, 2
SpringWellIron up to 7 ppm, H₂S up to 8 ppm, manganese up to 1 ppm (claimed)
AquasanaCarbon/KDF filtration + UV; no iron/sulfur filter
Home size1, 2
SpringWellWS1: 1–4 bath; WS4: 4+ bath
AquasanaUp to 2.5 bath / 4 people
Flow5, 6
SpringWell12 GPM / 20 GPM (manual: 18)
Aquasana7.0 GPM rated, 14.7 peak; UV certified at 6 GPM
Independent certification6, 7
SpringWellNo NSF listing found
AquasanaUV: NSF/ANSI 55 Class B; tank "independently tested"
Bacteria6, 8
SpringWellUV add-on $1,036, not NSF-listed
AquasanaUV included, Class B (supplemental only)
Sale price, Oct 31, 20261, 2, 9
SpringWell$2,100 / $2,520 + required test $134.25
Aquasana$1,749
Ongoing2, 5, 10, 18, 19, 20
SpringWellNo cartridges on the iron filter; power + drain needed
AquasanaAbout $274/yr in filters and lamp + $849 tank every 5 years
Water test9
SpringWellRequired before shipping
AquasanaNot required
Warranty11, 12
SpringWell"Lifetime" on valves/fittings; tanks 14″+ 10 yrs; heads 5 or 7 yrs; void outside spec
Aquasana5 yrs / 500,000 gal; housings 12 months
Returns13, 14, 17
SpringWell6 months, unused and uninstalled only, 10% restocking fee
Aquasana90 days, full refund of the purchase price; install labor not covered
Installation1, 3
SpringWellDIY keeps the warranty
AquasanaLicensed plumber "strongly" recommended

Where each one falls short

SpringWell

  • No NSF certification listing found for its well systems.7
  • The return promise is narrower than the "6-month money-back guarantee" badge suggests: installed systems only if defective.1, 13
  • Several specs differ between page and manual (WS4 flow and pH).1, 5

Aquasana

  • Not an iron filter (Aquasana: iron "may need a specialized filter"); iron build-up is excluded from the warranty.3, 12
  • The UV is Class B: a safeguard, not for disinfecting unsafe water.6, 15
  • Sized for smaller homes, with regular filter changes.2

Our verdict

Test first, then pick by problem

Iron, manganese or sulfur smell points to SpringWell. Clean, low-iron water in a smaller home points to Aquasana.

  1. Test your water at a state-certified lab.
  2. Enter the results in the filter selector.
  3. Read the full reviews: SpringWell · Aquasana.
A bright open-plan farmhouse kitchen and living room with tall windows onto a garden Photo: JessofWoodnCo · CC BY-SA 4.0 · modified
Illustration

If your test shows iron, sulfur or manganese

SpringWell WS1 / WS4

$2,100 brand list price $2,625 Price checked Oct 31, 20261

Iron ≤ 7 · H₂S ≤ 8 · Mn ≤ 1 ppm

Check price at SpringWell
Illustration

If your water is low in iron and hardness

Aquasana Rhino Well with UV

$1,749 brand list price $3,498 Price checked Oct 31, 20262, 14

2.5 baths · 7 GPM · 90-day returns

Check price at Aquasana
Sources (20) · checked Oct 31, 2026
  1. SpringWell: Whole House Well Water Filter System (WS1/WS4) product page (seen 2026-10-31)
  2. Aquasana: Rhino Well Water with UV product page (seen 2026-10-31)
  3. Aquasana FAQ: Rhino Well Water FAQ (seen 2026-10-31)
  4. UGA Extension: UGA Ext. Bulletin 939, Water Quality and Common Treatments for Private Drinking Water Systems (2026-07-01; checked 2026-10-31)
  5. SpringWell manual: WS1/WS4 installation instructions (PDF) (seen 2026-10-31)
  6. NSF listings: NSF certified drinking water treatment units: Aquasana (seen 2026-10-31)
  7. NSF listings: NSF certified drinking water treatment units: search for SpringWell (seen 2026-10-31)
  8. SpringWell: UV Water Purification System (seen 2026-10-31)
  9. SpringWell: Well Water Test Kit (seen 2026-10-31)
  10. Aquasana: Rhino Well Water replacement tank (seen 2026-10-31)
  11. SpringWell: Warranty (seen 2026-10-31)
  12. Aquasana warranty: WH-WELL-UV warranty (PDF) (seen 2026-10-31)
  13. SpringWell: Shipping, returns and refunds (free shipping to the continental US only) (seen 2026-10-31)
  14. Aquasana: Refunds and returns (seen 2026-10-31)
  15. Ohio Dept. of Health: Ohio Dept. of Health, UV Light for Continuous Disinfection (rev. July 2011; checked 2026-10-31)
  16. Aquasana UV manual: AQ-UV-SF/MF installation manual (PDF) (seen 2026-10-31)
  17. Aquasana: 90-Day Satisfaction Guarantee (PDF; installation labor not covered) (seen 2026-10-31)
  18. Aquasana: 20" Pre-Filter Replacement, 3 pack ($36.99; each lasts up to 2 months) (seen 2026-10-31)
  19. Aquasana: Post-Filter Replacement ($36.99; 6 months) (seen 2026-10-31)
  20. Aquasana: UV Replacement Lamp ($125.99; 12 months) (seen 2026-10-31)