Chlorine & chloramine
Catalytic carbon chemically breaks down chloramine — not just chlorine — the longer-lasting disinfectant cheap filters leave behind.
Product imagery from Sentry H2O.
City / municipal water
Sentry H2O Whole Home
Your home runs on water — showers, cooking, laundry, coffee — and most of it is never filtered.
$4,750 Live price & availability load from Shopify in production.
- 30-day money-back guarantee
- 1-year mechanical warranty on housings & hardware
- Free shipping over $99
Included
Both whole-home systems — city and well — come with the Sentry H2O under-sink drinking system built in. The house gets clean water at every tap; your kitchen sink gets mineral-rich, alkaline drinking water on top.
Every tap
whole-home coverage — showers, laundry, coffee, ice
0
gallons wasted — no drain line, no waste stream
Included
under-sink drinking system, in the box
Better than reverse osmosis
All the clean, none of the waste.
No waste stream
Reverse osmosis sends 3 to 5 gallons down the drain for every gallon it makes. This system has no drain line — it wastes none.
Alive, not stripped
RO strips calcium, magnesium and oxygen out. Catalytic carbon leaves the minerals in, the AlkaGuard stage adds more back — lab-tested 6.8 → 8.2 pH — and the ToxyGuard oxygenation stage adds oxygen back. Filtered, alkalized and oxygenated.
Every tap, not one
RO treats a single faucet. This treats the whole house — and still delivers alkaline drinking water at the kitchen sink.
What it takes out
The contaminants city water leaves behind.
Lead & arsenic
In independent lab testing, lead and arsenic went from detectable to non-detect after treatment.
PFAS + PFOS
Measured at the system level by an independent lab: in the under-sink test most PFAS compounds reached non-detect — 97.4–99.9% where both before-and-after values were quantified.
Fluoride & VOCs
Fluoride dosed in at the plant, plus VOCs from runoff and solvents, reduced through the same multi-stage media.
Reduction results depend on incoming water chemistry, flow rate and configuration; your results may differ. See the published independent lab reports on our Science page. Sentry H2O reports its systems are tested to NSF standards; certification documents are being finalized, so we do not call them NSF certified.
Salt-free scale control
Every fixture, protected from scale.
Hard water leaves scale on every fixture it touches — indoors and out. The whole-home system treats water with salt-free scale-control media the moment it enters the house, managing the minerals before they harden onto your pipes, water heater and fixtures — without a brine tank or bags of salt. It's protection at every tap.
Illustrative comparison of a scale-protected fixture vs. one on untreated hard water. Salt-free scale control prevents new buildup at the point of entry — it doesn't scrub away deposits that have already formed.
High-nitrate & agricultural water
Nitrates? We build for them.
In agricultural areas and many wells, nitrates are the real concern. The whole-home system is custom-fitted with nitrate-selective media — matched to your water test — to target nitrates head-on, without reverse osmosis's waste stream or stripped minerals. It isn't a compromise; it's a matter of building the right system for your water.
Nitrate treatment is configured to your water test results (standard on well and agricultural-area builds). Bring your test — or order our lab kit — and we size it to what your water actually shows.
End the bottled-water habit
Your tap becomes the source.
A whole-home system means there's nothing to buy, haul, or throw away — clean, filtered water is already waiting at every faucet in the house.
~80%
of all the plastic ever made is still sitting in a landfill or the environment right now
Science Advances, 2017
1 million
plastic bottles bought worldwide every single minute
Euromonitor / The Guardian
17M+
barrels of oil just to make the plastic bottles Americans drank in one year
Pacific Institute
Figures describe plastic-waste and bottled-water production broadly; sources on file. Filtered tap water skips the bottle entirely.
Every tap, not just the kitchen
The same clean water in the shower, the laundry and the ice.
Point-of-entry treatment means your whole home runs on filtered water — softer showers, cleaner appliances, better coffee — with alkaline drinking water at the kitchen tap.
Why it matters
The Whole Home, in short.
Every shower, every pot, every load of laundry, every cup of coffee — filtered. Most homes never think about the chlorine, PFAS, fluoride, arsenic and scale in every pipe, quietly working on your skin, your hair and your appliances. Softeners just mask it with salt; reverse osmosis fixes a single tap.
The Sentry H2O Whole House Wellness System treats it all at the source, then sends mineral-rich, alkaline water to your kitchen tap to drink. Ships complete with the under-sink system and three Revitalizer kits, and the tank media refreshes every 1–3 years — not every month. One system, your whole home handled.
Naturally alkaline
Minerals added back — pH 8.2.
The AlkaGuard stage is designed to add calcium and magnesium back and gently raise pH. Independent lab testing measured 6.83 in, 8.21 out — never stripped flat like reverse-osmosis water.
Lab-tested (under-sink, Tempe). pH varies with source water.
The details
Specifications
Specifications reflect the manufacturer (Sentry H2O). See our Science page for published independent lab reports and testing gaps. Sentry H2O reports its systems are tested to NSF standards; certification documents are being finalized, so we do not call them NSF certified.
Replacement filters & consumables
The Whole Home itself is a one-time purchase — but Sentry H2O Whole Home Revitalizer can be subscribed & saved, 15% off every shipment.
See Whole Home RevitalizerStraight answers
Common questions
Is the Sentry H2O Whole Home right for my home? +
Homeowners who want every tap, shower and appliance protected from one system. Not sure? Our 60-second quiz confirms fit in a minute.
How often do filters need replacing? +
Tank media refreshed with the Whole Home Revitalizer every 1–3 yrs (by household size); under-sink filters annually. Subscribe to auto-ship and we'll send the exact refill on schedule with a reminder.
What if it is not right for me? +
Every system is backed by a 30-day money-back guarantee. Mechanical housings and hardware are covered for 1 year; filters and filter media are excluded.
Is a whole-house system worth it compared to just filtering the kitchen tap? +
An under-sink system gives you clean drinking and cooking water; a whole-house system extends that to every shower, bath, laundry load and ice maker. The chlorine and chloramine absorbed through the skin during a shower can be a meaningful daily exposure -- a whole-house system removes that concern at every point of use.
Do I install it myself, or does it need a professional? +
Whole-house systems are point-of-entry installations on your main supply line, so professional installation is recommended for correct placement. Once installed they run passively -- no electricity, no daily management -- and media replacement is infrequent (roughly every one to three years on city water).
What is catalytic-carbon filtration, and how is it different from reverse osmosis? +
Catalytic-carbon filtration uses specially processed activated carbon that reacts with and breaks down contaminants as water passes through multiple stages. Unlike reverse osmosis, our Sentry H2O systems don't strip the water of everything -- they target the bad stuff while leaving naturally occurring beneficial minerals in place. You get cleaner, better-tasting water without wasting a drop or plugging anything into the wall.
Does the system need electricity or produce wastewater? +
No electricity, no drain connection, and no wastewater. Reverse osmosis systems can reject 3 to 5 gallons for every gallon they make; our Sentry H2O systems reject none and run on normal household water pressure. That means no extra drain line, no outlet, and nothing to plug in.
Does it change the taste or smell of the water? +
Yes -- for the better. Chlorine and chloramine drive most of that tap-water taste and smell, and the ToxyGuard stage is built to reduce both. The AlkaGuard stage then adds back trace minerals for a cleaner, rounder flavor, without the flat aftertaste reverse osmosis can leave behind.
What about chlorine and chloramine from city water? +
Both are specifically targeted by the ToxyGuard stage in every Sentry H2O system. Chloramine is notoriously hard to remove with standard carbon, which is exactly why we use catalytic carbon -- its enhanced reactivity breaks chloramine down more effectively, so your water smells and tastes clean straight from the tap.
Real customers, real water
What owners actually say
Verified Sentry H2O reviews, independently collected by Judge.me.
Verified reviews of Sentry H2O systems, independently collected by Judge.me.
4.92 /5 ★★★★★
Based on 457 reviews 91% Verified
5 434
4 14
3 7
2 0
1 2
Reviews independently collected & verified by
Know your water
Know what is in your water before you choose a system.
Check the public data, test your tap, then match your home to the right Sentry H2O system.
Read your local water report
Your area's annual Consumer Confidence Report (CCR) lists what has been detected in your municipal tap water.
Salt Lake City? See what's really in your water →Check the EWG Tap Water Database
Enter your zip code for a plain-language breakdown of the contaminants found in your local supply.
Open the EWG database →Test your tap with an at-home kit
A mail-in lab kit such as Tap Score by SimpleLab tells you exactly what is in your own water.
Get a Tap Score kit (SimpleLab) →Want help matching the result to a Sentry H2O system?