Aquasana · Updated July 2026
Aquasana OptimH2O: price & specs
Aquasana OptimH2O. Every price and spec below is linked to its source and dated — no guesses.
Source: web.archive.org verified STALE · 2026-07-11 ✓ corroborated verify in ledger
The Aquasana OptimH2O is listed at $439.99 on web.archive.org as of 2026-07-11, #4 cheapest of 8 reverse osmosis systems (median $445); other retailers may be lower. It earns a Bronze Deskmark — 38/100 pay-blind standing, #7 of 10 in class.
Verified Jul 11, 2026 · figures linked to their source in the table below
Cheapest reverse osmosis systems: Express Water RO5DX — $189.99
Is the Aquasana OptimH2O a good buy?
At $439.99, the Aquasana OptimH2O is #4 cheapest of the 8 reverse osmosis systems we track, where the median is $445. On the spec sheet, its filtration stages of 3 is the lowest of the 10, its rated capacity gpd of 13.32 is the lowest of the 7, and its membrane life months of 12 is the lowest of the 5.
Specifications
| Price (US) | $439.99 Manufacturer's stated MSRP of $439.99, per the archived Aquasana OptimH2O product page (verbatim "MSRP: 439.99"). The same page showed a promotional sale price of $199.99, but MSRP is used, per our method. Price captured 2021-01-19 via the Wayback Machine; the model is now discontinued and its live URL redirects to the successor SmartFlow. |
|---|---|
| Brand | Aquasana |
| Released | — |
| Install type | under-sink |
| Filtration stages | 3 |
| Rated capacity gpd | 13.32 |
| Pure to drain ratio | — |
| TDS reduction (%) | — |
| Remineralization | Yes |
| Requires electricity | No |
| Storage tank (gal) | 3.2 |
| NSF certified standards | 42, 53, 58, 401 |
| Membrane life months | 12 |
| Annual filter cost (USD) | — |
Source: web.archive.org (read 2026-07-11) STALE · 2026-07-11 · corroborated by amazon.com (read 2026-07-11).
How we checked
The Aquasana manufacturer product page (captured 2021-01-19 via the Wayback Machine, because the live URL now redirects to the successor SmartFlow model) identifies this exact unit as the OptimH2O Reverse Osmosis + Claryum, model AQ-RO-3 / AQ-RO-3.55, and states verbatim: MSRP $439.99, Daily Production (DPR) 13.32 gallons, a 3.2-gallon RO holding tank, NSF/ANSI Standards 42, 53, 58, 401 certification, "the system does not require electricity," and a Stage 1 (Carbon)/Stage 2 (RO Membrane)/Stage 3 (Claryum) design plus remineralization. Amazon's listing for AQ-RO-3.55 (OptimH2O Reverse Osmosis + Claryum) corroborates the model identity and several specs (Under Sink, Power Source: No Power, NSF/ANSI 42/53/58/401, 1-year RO membrane, remineralizer) though it shows the item as currently unavailable with no price. The newer SmartFlow (AQ-SFRO2) unit the live manufacturer page now redirects to is a different model with different specs (0.7 GPM, 25.7 gal/day, 90 contaminants) and was explicitly excluded.
Is the Aquasana OptimH2O worth it vs cheaper reverse osmosis systems?
Aquasana OptimH2O 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 | Rated capacity gpd | Remineralization | Requires electricity |
|---|---|---|---|---|---|---|
| Aquasana OptimH2O this | $439.99 | under-sink | 3 | 13.32 | Yes | No |
| APEC Essence ROES-50 | $230.99 | under-sink | 5 | 50 | No | No |
| Brondell Circle RC100 | $449.99 | under-sink | 4 | — | No | No |
Frequently asked questions
How much does the Aquasana OptimH2O cost?
The Aquasana OptimH2O has a US price of $439.99 (Manufacturer's stated MSRP of $439.99, per the archived Aquasana OptimH2O product page (verbatim "MSRP: 439.99"). The same page showed a promotional sale price of $199.99, but MSRP is used, per our method. Price captured 2021-01-19 via the Wayback Machine; the model is now discontinued and its live URL redirects to the successor SmartFlow.), as of 2026-07-11.
How does the Aquasana OptimH2O compare on price?
At $439.99, the Aquasana OptimH2O is #4 cheapest of the 8 reverse osmosis systems we track, where the median is $445.
What are the Aquasana OptimH2O's key specs?
Aquasana OptimH2O (Aquasana): Install type under-sink, Filtration stages 3, Rated capacity gpd 13.32, Remineralization, Storage tank (gal) 3.2. Full sourced spec sheet verified 2026-07-11.
Price of record: $439.99 at web.archive.org, 2026-07-11. Other retailers may be lower — check the current price:
Check current price at amazon.com As an Amazon Associate we earn from qualifying purchases.Similar reverse osmosis systems
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Compare with
Cheaper reverse osmosis systems
- APEC Essence ROES-50 $230.99
- iSpring RCC7AK $229.99
- Express Water RO5DX $189.99
Step up
- Brondell Circle RC100 $449.99
- AquaTru Classic $475
- Cloud RO $599
- Waterdrop A1 $649