US Water Systems Matrixx Tannin Removal System

Name: US Water Systems Matrixx Tannin Removal System
Brand: US Water Systems
Price: 2195.00 USD

Water softener · 10 GPM · Treats tannins · $2,195 (sale) at US Water Systems as of Oct 2026

The US Water Systems Matrixx Tannin is a whole-house anion-exchange tank for well water stained yellow or tea-colored by tannins. The 080-MXX-TN-100 is 1.0 cu ft at 10 GPM; the 080-MXX-TN-200 is 2.0 cu ft at 20 GPM. Those are the manual's peak figures; it rates normal service flow at 8 and 15 GPM. US Water Systems says its Tanex resin removes 99.5-100% of tannins, a manufacturer claim with no system certification; only NSF certified components are claimed. It does not soften water, and no maximum tannin level, pH range or iron limit is published.

This is not an iron filter and does not replace one. Order matters: sediment first, then iron or sulfur treatment, then a softener if hardness is above 5 gpg (US Water Systems' own instruction), then this tank, with any UV last. It regenerates with softener salt in about 1 hour 20 minutes and needs a drain, a brine tank and a 12-volt plug-in supply. The resin tank is 9 x 48 in.

Price was $2,195 at uswatersystems.com as of Oct 2026 (sale, against a $3,658.34 compare-at price); the 20 GPM size was $3,195. Install is DIY; the manual gives 1 in. or 3/4 in. MPT connections. Warranty is lifetime on tanks and 10 years on valve and electronics, with a one-year money-back promise.

Check price at US Water Systems

US Water Systems Matrixx Tannin Removal System well water water softener

Specifications

Verified 2026-10-06. Fields the manufacturer does not publish are marked “Not stated”.

US Water Systems Matrixx Tannin Removal System specifications
Model	080-MXX-TN-100 (1.0 cu ft, 10 GPM). 080-MXX-TN-200 (2.0 cu ft, 20 GPM) is the larger size on the same listing.
Type	Water softener
Treats	Tannins; also tea-coloured / yellow water from tannins (does not soften water)
Service flow	10 GPMProduct page lists 10 GPM for the 1.0 cu ft 080-MXX-TN-100 and 20 GPM for the 2.0 cu ft 080-MXX-TN-200. The owner's manual splits this into service flow 'Normal' 8 GPM / 'Peak' 10 GPM for MXX-TN-100 (15 / 20 GPM for MXX-TN-200) with 2 GPM backwash (3.5 GPM on the larger size), so the page's 10 GPM is the peak figure. Maximum tannin level, pH range and iron limits are not published; US Water Systems says to install it after a water softener if hardness exceeds 5 gpg.
Capacity	Not stated1.0 cu ft of resin (2.0 cu ft on the 20 GPM size). Manual 'High Capacity Settings': 12 lb salt per regeneration and 9,000 'Removal Grains' for MXX-TN-100 (24 lb / 18,000 for MXX-TN-200). Regenerates with water-softener salt. No gallon capacity published; the manual states the capacity and flow figures 'have not been validated by the WQA'. Regeneration cycle about 1 hour 20 minutes (product page, read 2026-10-05; not re-read 2026-10-06).
Media / technology	Anion exchange resin (tannin): 'Tanex is a proprietary blend of styrene and acrylic resins that removes 99.5 - 100% of the tannins' (maker claim, not a certified claim)
Connection	1 in. or 3/4 in. MPT (manual)
Installation	DIYMarketed for DIY homeowners with basic plumbing skills with a step-by-step manual; needs a drain line, a brine tank with softener salt and a 12-volt plug-in power supply. Connection size is not stated on the product page; the owner's manual gives 1 in. or 3/4 in. MPT.
Warranty	Lifetime manufacturer warranty'Lifetime on tanks \| 10-Year on the valve and electronics (Includes Internal Parts)'. One-Year Money Back Promise.
Certifications	Not statedProduct page: 'Utilizes all NSF Certified components' - a components claim, not a system certification. Manual: 'The above capacity and flow rate specifications have not been validated by the WQA.' WQA certified-product database (find.wqa.org/find-products) searched 2026-10-06 for 'US Water Systems', 'US Water', 'USWater', 'Matrixx' and 'MXX': no listing under US Water Systems or the Matrixx name. NSF certified-product database (info.nsf.org), searched 2026-10-06: No Matching Products Found for trade name "Matrixx". US Water Systems, Inc. (Plainfield, IN) has an NSF/ANSI 42 listing, but only for 22 filter cartridges (507-USWCB-...) as "COMPONENTS: Filter Cartridges[1] [Pb]" with "[1] Conforms to the material requirements only."; no Matrixx system, softener or spin-down appears.
Dimensions	Resin tank 9 x 48 in.; brine tank 14 x 36 in. per the product page (manual lists the brine tank as 15 x 17 x 36 in.). Manual 'System Dimensions' for MXX-TN-100: A 54.375 in, B 50.875 in, C 9 in. 20 GPM size: 12 x 52 in. resin tank, A 58.625 in.
Weight	100 lb
Price	$2,195 (sale) at US Water Systems as of Oct 2026

Published features

Industry leading Tanex anion resin for tannin removal
Electronic metering with precise monitoring and data tracking
Smartphone control via Bluetooth 5.0 and the free Legacy View app
Nitrate-free brine tank
12 Volt electrical system uses less than $2.00 a year of electricity
Chrome tank protector
Utilizes all NSF Certified components
Lifetime warranty on tanks, 10 years on valve and electronics

Pros and cons

Pros

Purpose-built whole-house anion-exchange tannin filter sold direct with published tank sizes and flow
Lifetime tank warranty, 10 years on valve and electronics, one-year money-back promise
Bluetooth metered valve tracks usage and regeneration
Two sizes (10 and 20 GPM) cover most homes

Cons

Does not soften water; US Water Systems recommends a softener ahead of it above 5 gpg hardness
No published maximum tannin level or pH range
No NSF/WQA system certification, only 'NSF certified components'
Weight listed as 100 lb on the product page but 88 lb in the store's variant data
The page's 10 GPM is the manual's peak figure; the manual rates normal service flow at 8 GPM

Our take

Buy the Matrixx Tannin if a lab test confirms tannins and you already have iron and sediment handled upstream; it is cheaper than the SpringWell STR-1 and carries a longer money-back window. Add a softener ahead of it if hardness is over 5 gpg, since this tank does not soften. The missing tannin, pH and iron limits mean you are trusting the maker's sizing, so send your test to US Water Systems before ordering.

Not sure it is the right size for your flow and your water test? Work through the sizing guide, or compare every system we cover on the best well water filtration systems (2026) list.

Where to buy

$2,195 (sale) at US Water Systems as of Oct 2026. Prices change; the links open the current listing.