Record WT-0011 ยท Last verified September 2026
US Water Systems Matrixx InFusion Ultimate Iron and Sulfur Eradication System
Whole-house filter (well water) 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 | C | $5,502 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 | |
|---|---|---|
| Iron | Maker claim | Other systems for Iron |
| Hydrogen sulfide | Maker claim | Other systems for Hydrogen sulfide |
| Manganese | Maker claim | Other systems for Manganese |
| Sediment | Maker claim | Other systems for Sediment |
| Bacteria | Maker claim | Other systems for Bacteria |
No claim made for: Chlorine, Chloramine, PFAS, Lead, Hardness, VOCs, Arsenic, Nitrate, Fluoride, Copper, Uranium.
PFAS evidence: No PFAS claim. Not certified for PFAS.
Certifications
| Standard | Covers | Scope | Certified by |
|---|---|---|---|
| NSF (standard not specified) | Page says 'All NSF Approved Components'. No NSF/WQA/IAPMO system listing found for US Water Systems whole-house systems. | components | maker claim, no system listing found |
Specifications
| Type | Whole-house filter (well water) |
|---|---|
| Technology | Chemical injection, Catalytic carbon |
| Water source | Private well |
| Price | $2,983 to $3,179 |
| Rated flow | 10 gallons per minute |
| Sized for | 1-2 bathrooms |
| Capacity | Catalytic carbon typically lasts 3-5 years (dependent on water usage and contaminant level) |
| Media | catalytic carbon, hydrogen peroxide injection (Stenner pump) |
| Stages | 2 |
| Port size | 3/4 or 1 inch MPT |
| Needs a drain | Yes |
| Needs power | Yes |
| DIY install | Yes, with basic plumbing skills |
| Dimensions | filter tank 10 x 54 in plus 15-gallon peroxide solution tank; overall footprint not stated |
| Weight | 158 lb |
| Warranty | Lifetime warranty on media tank; 10-year system parts warranty (valve, electronics); 5-year Stenner parts warranty (registration required) |
| 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 | $2,983 | 1 | $2,983 |
| Installation (assumed, professional) | $500 | 1 | $500 |
| inFusion 10 x 54 in rebed kit (1.5 cu ft catalytic carbon, 15 lb gravel, well sanitizer kit) | $499 | 3 | $1,497 |
| Stenner Econ F pump replacement tubes, 2-pack (411-EC30F-2) | $35 | 9 | $311 |
| Stenner 1/4 in Santoprene injection duckbill check valve (UCDBINJ) | $24 | 9 | $212 |
| Total | $5,502 |
Install assumption: $500 for whole-house systems, $150 for under-sink units. Installing it yourself brings the total to $5,002. Try your own numbers in the 10-year cost calculator.
Owner reports
On-site (Yotpo) reviews (42, avg 4.6) from more than one owner report a residual sulfur smell that is reduced but not eliminated and slow technical support or parts (one waited over a month for an injector); one owner at about 12 ppm iron says the media clogged after 8 months with no warranty coverage. Brand-level Trustpilot complaints cite shipping delays and slow refunds.
Trustpilot: 4.1 from 1034 reviews (source).
Compare-at (list) price $5,491.59 shown struck through. A review on the product page reports clogging after about 8 months at ~12 ppm iron with no warranty coverage for fouled media. Cheaper sibling: Flexx InFusion (non-smart valve, lower limits). A combo with softener (Matrixx Ultimate Iron & Sulfur Eradication & Softening, $4,454.95-$4,977.95) is also sold.
Where we cover it
- Best picks: The best whole house water filters for well water
- Best picks: The best whole house water filters
- Comparison: SpringWell vs US Water Systems
- Guide: Iron in well water: what it is and how to remove it
- Guide: Why your well water smells like rotten eggs, and how to fix it
Alternatives in the same category
| System | Grade | Price | 10-yr cost | Certified to |
|---|---|---|---|---|
| SpringWell WS1 | C | $2,231 | $2,731 | None |
| SpringWell WSSS1 | C | $3,124 | $3,624 | None |
| SoftPro Iron Master AIO | C | $1,517 | $2,692 | None |
| Aquasana Rhino Well Water with UV WH-WELL-UVS (WH-WELL-UV) | C | $1,749 | $8,523 | None |
| US Water Systems Flexx Oxi-Gen (081-FX) | C | $2,230 | $2,730 | None |
Sources
- uswatersystems.com/products/matrixx-infusion-iron-and-sulfur-removal-system.json
- uswatersystems.com/products/matrixx-infusion-iron-and-sulfur-removal-system
- usws-pdfs.s3.us-east-2.amazonaws.com/media/pdf/USWaterMatrixxInfusionIronandSulfurRemovalS
- uswatersystems.com/products/infusion-10-x-54-rebed-kit-10-gpm.json
- uswatersystems.com/products/us-water-oxipro-7-hydrogen-peroxide-2-2-5-gallon-bottles.json
- uswatersystems.com/pages/guarantee-1
- uswatersystems.com/pages/return-policy
- uswatersystems.com/products/stenner-econ-f-pump-replacement-tubes-2-pack.json
- uswatersystems.com/products/stenner-santoprene-replacement-injection-duckbill-check-valve-
- api-cdn.yotpo.com/v1/widget/iuykqMgEBqXCzCLMbFMuX2YFuyLLjm1xtK6AT7BV/products/833623726520
- trustpilot.com/review/uswatersystems.com?stars=1&stars=2
