The Spout Monolith
A countertop atmospheric water generator that condenses moisture from air, with manufacturer-listed output of up to 2.5 gallons per day depending on conditions.
Best for: Design-conscious homes wanting plastic-free, off-grid drinking water
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Watch: the Spout Monolith in an RV
A short from WaterVO showing the Spout Monolith making water from the air in an RV, with no plumbing line.
Watch on YouTubeIndependent lab results
In the Spout water samples tested, independent labs found these not detected.
"Not detected" means the analyte was below the laboratory's reporting limit in that tested sample. Reporting limits and methods are shown on each report.
| Analyte | Method / reporting limit | Result | Lab reports (PDF) |
|---|---|---|---|
| PFAS | PFOA, PFOS, GenX · EPA 1633 & 533 | Not detected |
|
| Microplastics | 7 polymer types, all sizes · PLM / Raman | Not detected | |
| BPA | Bisphenol A · LC/MS/MS · Eurofins | Not detected | |
| Pharmaceuticals & hormones | ~40 compounds · LC/MS/MS | Not detected | |
| Dioxins & furans | 18 congeners · EPA 1613 | Not detected |
Spout's results page lists more analytes (metals, VOCs, bacteria and others). This table shows only results backed by a published report on a Spout water sample.
Spout: 14 reports published; the 10 linked above back these five rows.
Results as published by Spout from independent accredited labs (EMSL Analytical, SimpleLab / Infinite Chemical, Eurofins, Cape Fear Analytical). Specific tested samples, Jun 2024 to Feb 2025.
These results are from specific tested samples of Spout water, not a permanent guarantee for every unit, every day. Water quality depends on your filters, maintenance, and environment.
Source: Spout's published independent lab reports, linked above.
How it works
- 01
Pulls moisture from the air
MERV-13 filter media cleans incoming air, then a ceramic desiccant wheel captures the water vapor it carries.
- 02
Filters and mineralizes
Six stages, then minerals added back for taste and ~9.0 pH.
- 03
Fills the pitcher, fresh daily
Up to 2.5 gallons a day depending on temperature and humidity.
The six stages
- 1Air pre-filter (MERV-7 carbon felt)
- 2Air media (MERV-13)
- 3Runs it past a UV-C light and filters
- 4NASA-derived sediment + bio block membrane
- 5Minerals added back for taste
- 6Granular carbon taste polish
Output depends on temperature and humidity; Spout reports roughly a pitcher a day in high desert to about 2.5 gal/day in humid climates, indoor operation down to about 10% RH.
Watch: The pH Spectrum
Water condensed from air is often slightly acidic because it absorbs carbon dioxide (pure water in equilibrium with air sits near pH 5.6), which is why it is often adjusted or remineralized; measured values vary with location and equipment.
Watch on YouTube · Read the full guide: The pH Spectrum: From Your Blood to Your Tap
Cost per 16.9 oz bottle
| Water source | Cost per 16.9 oz | vs Spout |
|---|---|---|
| Spout on solar (filters only) | ≈$0.04 | 1× |
| Spout on grid @ $0.20/kWh | ≈$0.22 | 1× |
| Alive Water | $1.37 | 6× more |
| Mountain Valley | $1.42 | 6× more |
| Erewhon | $2.83 | 13× more |
| Hallstein | $7.15 | 32× more |
Spout's figures assume 2 gallons a day at $0.20/kWh (≈5 to 9 kWh per gallon) plus about $200/yr in filters; grid figure is a midpoint (≈$0.17 to $0.27 depending on climate and rate). Bottled prices are retail per 16.9 fl oz as listed by Spout.
Spout reports about 30% of owners run the machine on solar, which leaves mainly the filter cost, about a nickel a bottle.
The honest comparison
A manufacturer's comparison, not a Hydrology University lab conclusion.
| Feature | Spout | Tap + filter | Bottled | Delivery |
|---|---|---|---|---|
| No PFAS / microplastics source | ● | ◐ | ○ | ◐ |
| Independent of pipes + trucks | ● | ○ | ◐ | ○ |
| Running cost per gallon | ◐ | ● | ○ | ○ |
| Upfront cost | ○ | ◐ | ● | ◐ |
| Works the same everywhere | ◐ | ● | ● | ◐ |
| Plastic waste | ● | ● | ○ | ◐ |
Legend: ● strong · ◐ partial · ○ weak
Spout's own comparison. Spout depends on room humidity and costs more upfront; tap water wins on running cost.
These results are from specific tested samples of Spout water, not a permanent guarantee for every unit, every day. Water quality depends on your filters, maintenance, and environment.
What owners say
Generates half a gallon of drinking water every 12 hours, in a NY apartment with windows closed, faster with the windows open...
2.5 gallons a day being produced... It's been over 18 months and it still makes 2.5 gallons a day, every day.
We built an extensive battery and solar setup for our rig, and Spout Water could not have been a more ideal solution... Plug it in, and it just works.
Spout was super easy to set up, and started cranking out water within minutes. The taste is refreshing and clean.
We love the taste and cleanliness of the water it makes, independence from city sources and plastic bottles.
Everything the Monolith does
One countertop unit with a water generator, replaceable filter stages, and pitcher.
Water from air, no plumbing
Pulls moisture from the room and condenses it. No plumbing connection is required; the unit uses a standard outlet.
Replaceable filters
The manufacturer describes water and air filter stages. Consult current product documentation for model details and maintenance.
Air filter stage
Spout describes a dual-layer MERV 13 air filter. Refer to the manufacturer for specifications and replacement guidance.
Smart pitcher
The Always Fresh Pitcher includes a UV-C light and level sensors that stop the flow when it is full.
Fridge-ready, easy to clean
The slim half-gallon pitcher slides into a fridge shelf or door. The base is dishwasher-safe and the smart lid wipes clean.
Solar-ready & portable
At 25 lbs with no plumbing, it moves anywhere — and runs off-grid on a ~2 kW solar array.
Water generation without a plumbing connection
The Monolith is a countertop appliance that condenses moisture from room air. Its output depends on operating conditions and manufacturer maintenance instructions.
Countertop format
The appliance sits on a counter and does not require a plumbing connection.
Output varies
Daily output depends on temperature, humidity, and operating conditions.
Maintenance
Follow the manufacturer's current instructions for filter replacement and cleaning.
How the Spout makes water from air
The Monolith condenses moisture and routes it through internal stages before dispensing.
Pulls moisture from the air
The unit condenses moisture from the surrounding air; output depends on operating conditions.
Collects water
Condensed water is routed through the device's internal stages. See current manufacturer documentation for details.
Replaceable filter stages
Spout describes water filtration and remineralization stages. Consult current documentation for model details and service instructions.
Dispenses to the smart pitcher
Water flows into the Always Fresh Pitcher, which can be removed for pouring or chilled in a refrigerator.
What's included with every Spout Monolith
Spout Monolith unit
The countertop machine that condenses moisture from air.
Always Fresh Pitcher
Half-gallon smart pitcher with a built-in UV-C light.
1 air filter + 1 water filter
One air filter and one water filter are included, according to the manufacturer.
Spout travel bag
Durable, water-resistant bag for transporting or storing the unit.
Quickstart guide & manual
Everything you need to set up in minutes — no tools required.
1-year limited warranty
Plus a 30-day money-back guarantee on every unit.
The full spec sheet
Every published specification for the Spout Monolith, in one place.
The pitcher and filters, explained
Full reviews of both live on our accessories page — here's the short version.
Always Fresh Pitcher — $99
The half-gallon smart pitcher included with every Monolith (extras available).
- UV-C light is built into the pitcher lid; follow the manufacturer's cleaning and maintenance instructions
- Level sensors stop the Monolith automatically — no overflow
- Wireless charging while docked; ~3-day battery on its own
- Slim design fits fridge shelves and doors
Spout Filter Packs — $99 / 6 months
Two packs (2 air + 2 water filters) every 6 months covers the 3-month replacement schedule.
- Replaceable water filters; consult Spout's current product documentation
- Manufacturer-described remineralization stage
- Air filter specifications and maintenance guidance are available from Spout
- Subscribers save 38%; mail old filters back for recycling
Born from a drought notice
Spout began when founder Reuben Vollmer's parents — recently retired to a small California mountain ranch — received a state notice that they could lose their water rights during the drought. Walking his dog the next morning, he looked at the dew on a lawn and asked: why couldn't the moisture in the air be a water supply?
He spent the next decade engineering atmospheric water harvesting systems. The company describes its mission as making water-from-air technology available without a plumbing connection.
After years of prototypes and refinement, the result is the Monolith, a countertop atmospheric water generator. The design received an iF Design Award and has been covered by Fast Company, Dezeen, and other outlets.
Spout Monolith FAQ
Every common question, answered. Anything else — email us and we'll get you an answer fast.
How much water does the Spout make per day?+
Between 2 and 2.5 gallons per day in typical conditions, depending on temperature and humidity. Output ranges from 0.75 gallons in very dry conditions up to 2.5 gallons when humidity is high.
Will Spout work where I live?+
Spout works in any climate with at least 20% humidity — that's just about everywhere in the United States and over 80% of the rest of the world.
What is the power usage?+
Roughly 380–600 watts depending on conditions (rated range 360–640 W). It plugs into any standard wall outlet — no special wiring.
Can it run on solar?+
Yes. Spout recommends at least a 2 kW solar array, which is roughly a 6 ft × 4 ft panel footprint. That makes it a genuine off-grid drinking water option.
How often do the filters need changing?+
The Monolith uses one water filter and one air filter, and both should be replaced every 3 months for peak performance. The filter subscription delivers 2 complete packs (2 air + 2 water filters) every 6 months for $99, so your next set arrives before you run out. See our Spout Filter Pack listing on the accessories page for full details.
Can I use other brands of filters?+
No — only genuine Spout filters fit the machine properly. The good news: used filters can be mailed back to Spout for free recycling.
What is alkaline water?+
Alkaline water has a higher pH than neutral water. Spout describes its remineralization stage as adding minerals for taste.
Can I use the water for cooking?+
Follow the manufacturer's current instructions for the unit and pitcher.
Will it dry out the air in my home?+
No. While Spout harvests humidity from the air, the change is not typically noticeable in an average home.
We cook strong-smelling foods — will the water pick up odors?+
Spout describes an air filter stage. For placement and maintenance details, follow the manufacturer's current instructions.
How do I remove and clean the pitcher?+
Lift the cylinder above the pitcher up an inch or two, tilt the top of the pitcher toward you, and it comes out. Clean the inside gently and rinse thoroughly. When replacing it, push down firmly so the orange ring at the bottom lifts visibly. The base is dishwasher-safe and the smart lid wipes clean.
Should I turn it off when traveling?+
The Spout automatically stops once the pitcher is full, but as a general rule it's recommended to turn it off when leaving town — like any appliance.
What's included in the box?+
The Spout Monolith unit, the Always Fresh Pitcher, one air filter, one water filter (your first 3 months), a water-resistant travel carry bag, the quickstart guide and user manual, and a 1-year limited warranty.
What are the price and shipping details?+
Pricing runs $1,495 (reserve; ships September 2026) to $1,995 (in stock, free shipping), with financing available from about $94/month. Every unit carries a 30-day money-back guarantee and a 1-year limited warranty. Note: no shipping to PO boxes. Email us for current pricing and availability.
How do I order or get more information?+
Use any See it at WaterVO button on this page to view current pricing, availability, and ordering details on WaterVO's Spout Monolith listing.
Our review
The Monolith is a countertop atmospheric water generator. It condenses moisture from air and includes replaceable air and water filters.
Manufacturer-listed specifications include 0.75 to 2.5 gallons of output per day depending on humidity, 360–640 watts of power draw, and dimensions of 19 × 8.5 × 15 inches. Check current documentation for model details and operating conditions.
Pricing, availability, included accessories, warranty, and shipping terms can change. Confirm current details with the seller before ordering.
What we love
- Condenses moisture from air with no plumbing connection
- Includes a pitcher with UV-C light
- Listed with replaceable water and air filters
- Solar-ready for off-grid use; 30-day money-back guarantee
Keep in mind
- Output and efficiency drop in very dry climates
- Premium price and ~5–9 kWh of electricity per gallon
The HU Recommendation
A countertop atmospheric water generator with manufacturer-listed output and power specifications. Confirm current operating conditions, maintenance instructions, pricing, and availability before buying.
Ready for water from thin air?
View current pricing, availability, and ordering directly on WaterVO’s Spout Monolith listing.
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