Cloud Water Filters review
Updated September 30, 2026 · SmartHomeCue Editorial Team · Facts checked September 30, 2026
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Our verdict
Cloud Water Filters suits US homes that want reverse osmosis installed under the sink and can live with a running cartridge bill of $200 to $250 a year. Cloud RO starts at $649 and carries a 5 year warranty, so the strength is certification and cover, not entry price.
Key facts
- Best for
- US households wanting certified reverse osmosis with long cover and a clear filter budget.
- Filter system
- Reverse osmosis (Source, checked September 30, 2026)
- Reference models
- Cloud RO (Source, checked September 30, 2026)
- Price from
- $649 (Source, checked September 30, 2026)
- Cartridge price
- $200 (Source, checked September 30, 2026)
- Filter cost per year
- $200 to $250 (Source, checked September 30, 2026)
- Certification scope
- NSF 58 full system certification for Cloud RO, covering TDS reduction (98%), efficiency rating and extraction test, plus an added lead content test showing weighted average lead content of <=0.25% (Source, checked September 30, 2026)
- PFAS and lead reduction
- Yes (Source, checked September 30, 2026)
- Installation required
- Yes (Source, checked September 30, 2026)
- Warranty
- 5 years (Source, checked September 30, 2026)
- Markets
- US (Source, checked September 30, 2026)
- Legal entity
- Cloud Water Filter, LLC (Source, checked September 30, 2026)
- Headquarters
- United States (Source, checked September 30, 2026)
- Support channels
- Email, Chat, Help-centre (Source, checked September 30, 2026)
- NSF/ANSI standards
- 58
- Official website
- cloudwaterfilters.com
Apps and profiles
- Elsewhere
- X
Pros and cons
Pros
- Cloud RO carries full system certification under 58, with an added lead content test on top of the standard scope.
- PFAS and lead reduction is stated for the system, so buyers focused on those contaminants have a direct answer.
- A 5 year warranty covers the unit itself, not just the cartridges that come with it.
- Running costs are stated plainly: $200 to $250 a year in cartridges priced at $200, which makes later years easy to plan.
Cons
- The Cloud RO entry price of $649 sits well above a typical site entry price of €127.49, so it asks for money up front.
- Installation is required for the Cloud RO, so it asks for a fitting job, while the IBBL range is countertop for buyers who would rather set a unit on the worktop.
- Support runs on email, chat and help centre only, so there is no phone line listed for problems with the plumbing.
- Cloud Water Filters sells in US alone, so anyone outside the US has to look at a different brand.
Who it suits
- US homeowners with plumbing space under a sink who want an installed system rather than a countertop filter.
- Households that put certified contaminant reduction, including PFAS and lead, ahead of the lowest entry price.
- Buyers who would rather cover a system with a 5 year warranty than think about cartridge pricing every year.
Who should look elsewhere
- Shoppers with a tight opening budget, who will find entry points below €127.49 elsewhere on the site.
- Renters and anyone without a plumbing slot, since Cloud RO needs installation while the IBBL countertop units do not.
- Anyone outside US, or buyers who want to phone a company, since support here runs on email, chat and help centre only.
Core features
Cloud Water Filters sells the Cloud RO as its reference system, and it states that this model reduces PFAS and lead in drinking water. Installation is required, so the unit needs a plumbing connection and a planned slot under the sink rather than a free spot on the worktop. That fitting is a single job, and it is backed by a 5 year warranty on the system. For a household that fits it and leaves it running, stated contaminant reduction, required installation and long cover are the core of the offer.
Plans and prices
There is a single plan to weigh here, the Cloud RO system. At entry, Cloud RO costs $649, and that payment decides whether the brand fits a budget. The renewal side looks different: cartridges cost $200 each, and the annual filter bill for a Cloud RO household runs $200 to $250. The two figures should not be merged into a single total. The opening price is the larger payment, and the yearly figure is what keeps arriving, so buyers who compare brands on entry cost alone see only part of what Cloud Water Filters asks over time.
How it compares on our data
Cloud RO is placed at 47 out of 52 on entry price. The same pattern holds on the running cost measures, with the yearly filter bill at 43 out of 46 and cartridge price at 48 out of 50. All three placements sit in the same part of their tables, so the brand is consistent across entry and ongoing spend rather than cheap in one place and dear in another. Buyers after a lighter filter bill should check the cheaper end of the ranking before settling.
The company behind it
Cloud Water Filters trades as Cloud Water Filter, LLC, and is a US company. It sells into US, so availability outside the US is not part of the offer. Support runs on email, chat and help centre, which covers email, chat and a help centre. That is a workable setup for a product with a fitting involved, though anyone who prefers to talk a problem through by phone will find no number listed. The help centre and chat carry the load for setup and cartridge questions.
How Cloud Water Filters compares
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Where Cloud Water Filters is available
- Available
- United States
Countries from the brand (Source, checked September 30, 2026)
Frequently asked questions
How much does Cloud Water Filters cost at the start?+
The Cloud RO system has an entry price of $649, which covers the unit itself. That figure sits well above a typical site entry price of €127.49, so it is the first thing to weigh against a budget. Running costs are separate and are covered by the yearly filter bill.
What does the filter cost to keep running?+
Cartridges are priced at $200 each, and the annual filter cost for a Cloud RO household runs $200 to $250. Those are the figures to plan around rather than the entry price. Cartridges are bought as they are used up, so the yearly total tracks household consumption.
Is there a warranty on the system?+
There is. Cloud Water Filters offers a 5 year warranty, a long commitment for an installed filter. It applies to the Cloud RO system itself, so a failure inside the covered period does not mean buying a replacement unit outright.
What certification does Cloud RO hold?+
The Cloud RO system carries full system certification under 58, the drinking water reverse osmosis standard. The scope covers dissolved solids reduction, an efficiency rating and an extraction test, plus an added lead content test beyond the standard requirements. The brand also states PFAS and lead reduction for the model.
Does Cloud Water Filters need installation?+
Installation is required for the Cloud RO system, so it needs a plumbing connection and space under a sink rather than a worktop. That rules out plug and play use and suits households with a suitable water line nearby. Renters and anyone without a plumbing slot should look at a countertop filter instead.
Which countries can buy from Cloud Water Filters?+
The brand sells in US and is headquartered there, so the offer is framed around a US market. Availability, shipping and support all follow that. Buyers in other regions would need a different brand rather than an imported unit.
How do I contact Cloud Water Filters support?+
Support runs on email, chat and help centre. That means email, chat and a self service help centre, which covers most setup and cartridge questions. No phone line is listed, so anyone who wants to talk an installer through a problem will not find one here.
How does the Cloud RO price compare with other brands on the site?+
On entry price, Cloud RO sits at 47 out of 52 in the ranking. The yearly filter bill lands at 43 out of 46, and cartridge price at 48 out of 50. All three move together rather than pulling in different directions.
Sources
- cloudwaterfilters.com/buy/cloud-ro checked September 30, 2026
Backs: Filter cost per year, Filter system, Installation required, Price from, Reference models
“the typical replacement cadence for a family of four is every 9-12 months, and the cost on average is $200-$250 per year”
- cloudwaterfilters.com/buy/filters checked September 30, 2026
Backs: Cartridge price
“5 Pack - $200 ... It includes a sediment filter, carbon block filter, reverse osmosis membrane, remineralizing post filter, and battery.”
- cloudwaterfilters.com/faq checked September 30, 2026
Backs: Headquarters, Markets, PFAS and lead reduction, Warranty
“We are a US company based in San Diego, CA.”
- cloudwaterfilters.com/nsf checked September 30, 2026
Backs: Certification scope, NSF/ANSI standards
“the system removes >99% of lead the the listing states that the "Product also evaluated and determined to possess weighted average lead content of <=0.25%"”
- cloudwaterfilters.com/privacy checked September 30, 2026
Backs: Legal entity, Support channels
“Cloud Water Filter, LLC, a Delaware limited liability company with its principal place of business at 4555 30th St., Unit 101, San Diego, CA 92116”
Compiled from 5 source pages, checked September 30, 2026. We did not open an account.
Not confirmed yet: Cartridge life (l).
Related by the facts
Cloud Water Filters
US households wanting certified reverse osmosis with long cover and a clear filter budget.