Record WT-0013 ยท Last verified September 2026
US Water Systems GreenWave Salt-Free Water Softener Alternative
Salt-free conditioner by US Water Systems. No system-level certification found at NSF, IAPMO, WQA or CSA.
We may earn a commission. It never changes a grade.
Scorecard
| Measure | Grade | Basis |
|---|---|---|
| Certification evidence | D | Maker claims only, no certification or published lab data |
| 10-year cost | A | $2,621 over 10 years |
| Flow rate | B | 10 gpm rated flow |
| Warranty | A | Lifetime on main parts |
| Returns | D | 60 days, 40% restocking fee |
What it treats
"Certified" means an independent body (NSF, IAPMO, WQA or CSA) lists this system for that contaminant. "Lab tested" means the maker published a third-party lab report. "Maker claim" means neither.
| Contaminant | Evidence | |
|---|---|---|
| Hardness | Maker claim | Other systems for Hardness |
No claim made for: Chlorine, Chloramine, PFAS, Lead, Iron, Manganese, Hydrogen sulfide, Bacteria, Sediment, VOCs, Arsenic, Nitrate, Fluoride, Copper, Uranium.
PFAS evidence: No PFAS claim. Not certified for PFAS.
Certifications
No certification of any kind found for this system.
Specifications
| Type | Salt-free conditioner |
|---|---|
| Technology | Salt-free conditioning |
| Water source | City water, Private well |
| Price | $1,361 to $1,926 |
| Rated flow | 10 gallons per minute |
| Capacity | Media engineered to be long-lasting, typically lasting 4-6 years |
| Media | Next Scale Stop (NSS) template assisted crystallization media |
| Stages | 1 |
| Port size | 1 inch |
| Needs a drain | No |
| Needs power | No |
| DIY install | Yes, with basic plumbing skills |
| Dimensions | tank 10 x 35 in; manual lists 10 in diameter x 40.25 in overall height |
| Weight | 45 lb |
| Warranty | Lifetime coverage on media tank and control valve body, and lifetime on head assembly (original purchaser, original residence) |
| Returns | One-year money back guarantee (applies to systems specified by their water specialists, typically after a lab water test); unopened US Water brand residential items returnable within 60 days, restocking fee up to 40% may apply |
10-year cost
| Item | Each | Times in 10 years | Cost |
|---|---|---|---|
| System purchase | $1,361 | 1 | $1,361 |
| Installation (assumed, professional) | $500 | 1 | $500 |
| GreenWave Next Scale-Stop 10 x 35 in rebed kit (3 liters NSS TAC media) | $380 | 2 | $760 |
| Total | $2,621 |
Install assumption: $500 for whole-house systems, $150 for under-sink units. Installing it yourself brings the total to $2,121. Try your own numbers in the 10-year cost calculator.
Owner reports
No product-level complaints: all 7 on-site (Yotpo) reviews are 5 stars. Brand-level Trustpilot (4.1 from 1,034 reviews) 1-2 star reviews repeatedly cite shipping delays despite next-day shipping claims, slow refunds and restocking fees, and slow customer service.
Trustpilot: 4.1 from 1034 reviews (source).
annualCostUsd assumes the 10 GPM rebed kit ($379.95) over the midpoint of the stated 4-6 year media life (about $63-95/yr). Warranty on media is voided by fouling from iron, sulfur, chlorine above 0.01 ppm and similar. Sold bundled with the Bodyguard carbon filter as a city-water combo ($2,179.71-$3,273.95). Compare-at price $2,578.25 shown struck through.
Where we cover it
- Best picks: The best salt free water softeners
- Comparison: SpringWell vs US Water Systems
- Guide: Salt-free vs salt water softener
Alternatives in the same category
| System | Grade | Price | 10-yr cost | Certified to |
|---|---|---|---|---|
| SpringWell FS1 | B | $1,785 | $3,087 | None |
| Kind Water Systems E-2000 | C | $1,353 | $5,192 | None |
| Aquasana Salt-Free Water Conditioner WH-SFWC-S | C | $879 | $4,264 | None |
| Watts OneFlow+ OFPSYS | C | $829 | $4,297 | NSF/ANSI 372 (lead-free materials only) |
Sources
- uswatersystems.com/products/greenwave-salt-free-water-conditioner.json
- uswatersystems.com/products/greenwave-salt-free-water-conditioner
- usws-pdfs.s3.us-east-2.amazonaws.com/media/pdf/USWaterSystemsGreenWave20.pdf
- uswatersystems.com/products/greenwave-next-scale-stop-salt-free-system-10-x-35-rebed-kit-1
- uswatersystems.com/products/bodyguard-whole-house-filtration-green-wave-salt-free-alternat
- uswatersystems.com/pages/guarantee-1
- uswatersystems.com/pages/return-policy
- api-cdn.yotpo.com/v1/widget/iuykqMgEBqXCzCLMbFMuX2YFuyLLjm1xtK6AT7BV/products/833628304209
- trustpilot.com/review/uswatersystems.com?stars=1&stars=2
