Cloud Water Filters · Updated July 2026

Cloud RO: price & specs

Name: Cloud RO
Brand: Cloud Water Filters
Price: 649 USD
Availability: InStock

The Cloud RO costs $649, #7 cheapest of 8 reverse osmosis systems (median $445). It earns a Silver Deskmark — 55/100 pay-blind standing, #4 of 10 in class.

Verified Jul 11, 2026 · figures linked to their source in the table below

See Cloud RO on Amazon Recorded 2026-07-11 — live price may differ. As an Amazon Associate we earn from qualifying purchases.

Cloud RO. Every price and spec below is linked to its source and dated — no guesses.

Source: cloudwaterfilters.com verified 2026-07-11 ✓ corroborated verify in ledger

Cloud RO — Cloud Water Filters — Image: cloudwaterfilters.com (© Cloud Water Filters)

Is the Cloud RO a good buy?

At $649, the Cloud RO is #7 cheapest of the 8 reverse osmosis systems we track, where the median is $445. On the spec sheet, its pure to drain ratio of 1:1 is the lowest of the 4, its filtration stages of 4 is below the median of the 10, and its storage tank gal of 2.8 is below the median of the 9.

Specifications

Price (US)	$649 Cloud Water Filters official store page (cloudwaterfilters.com/buy/cloud-ro) lists the Cloud RO at "$649" with a current "$50 OFF" promo (net $599). Using $649 as the manufacturer list/MSRP (the only price printed verbatim on the manufacturer page). The Quality Water Lab review independently states "Unit Cost: $599" (the promo/street price).
Brand	Cloud Water Filters
Released	—
Install type	under-sink
Filtration stages	4
Rated capacity gpd	—
Pure to drain ratio	1:1
TDS reduction pct	—
Remineralization	Yes
Requires electricity	No
Storage tank gal	2.8
Nsf certified standards	58
Membrane life months	—
Annual filter cost usd	200

Source: cloudwaterfilters.com (verified 2026-07-11) · corroborated by qualitywaterlab.com. The Cloud Water Filters official store page (source) confirms this exact model — "Cloud RO, Under Sink Reverse Osmosis System" — with a 2.8-gallon holding tank, a battery-powered internal hydraulic pump ("battery powered so no electrical hookup is required"), an integrated remineralization stage, NSF 58 certification, a listed price of $649 ($50-off promo to $599), and replacement filters averaging $200-$250/year. The Quality Water Lab hands-on lab review (corroboration, dated Sep 2025) independently confirms the same Cloud RO unit and its "4-stage RO" design (sediment, carbon block, RO membrane, remineralization), "1:1 pure-to-waste ratio," 2.8-gallon tank, NSF/ANSI 58 certification, ~$200/year filter cost, and a $599 unit cost. ratedCapacityGpd is null because sources disagree (manufacturer-rated "up to 80 GPD" membrane production per WaterFilterGuru vs. a 600 GPD marketed "flow rate" on QWL — neither is a clean methodology-aligned permeate-production figure on the cited corroboration); membraneLifeMonths (reviews split 18 vs 24 mo; manufacturer uses usage-based, not fixed-interval, replacement) and tdsReductionPct (no specific manufacturer TDS% claim) are likewise null.

Is the Cloud RO worth it vs cheaper reverse osmosis systems?

Cloud RO against its closest cheaper and pricier reverse osmosis systems on the specs that matter — every value sourced. See all 8 ranked →

Product	Price	Install type	Filtration stages	Pure to drain ratio	Remineralization	Requires electricity
Cloud RO this	$649	under-sink	4	1:1	Yes	No
AquaTru Classic	$475	countertop	4	—	No	Yes

Frequently asked questions

How much does the Cloud RO cost?

The Cloud RO has a US price of $649 (Cloud Water Filters official store page (cloudwaterfilters.com/buy/cloud-ro) lists the Cloud RO at "$649" with a current "$50 OFF" promo (net $599). Using $649 as the manufacturer list/MSRP (the only price printed verbatim on the manufacturer page). The Quality Water Lab review independently states "Unit Cost: $599" (the promo/street price).), as of 2026-07-11.

How does the Cloud RO compare on price?

At $649, the Cloud RO is #7 cheapest of the 8 reverse osmosis systems we track, where the median is $445.

What are the Cloud RO's key specs?

Cloud RO (Cloud Water Filters): installType under-sink, filtrationStages 4, pureToDrainRatio 1:1, remineralization Yes, requiresElectricity No. Full sourced spec sheet verified 2026-07-11.