Apec Water ROES-100 Filtration System
- Filtration System
- Reverse Osmosis
- Under-Sink
- Polypropylene
A conventional under-sink RO system rated to 100 gallons a day, worth considering for kitchens wanting membrane-level filtration rather than carbon-only.
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How it ranks among the 65 filtration systems we track
4.3★ across 301 Amazon ratings, Bayesian-smoothed toward the category average.
301 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
100+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 65 filtration systems we track - how the scorecard works · full filtration systems data report. Confidence: high - strong rating volume and complete data.Last refreshed Aug 4, 2026. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
The Apec Water ROES-100 is an under-sink reverse osmosis filtration system rated for 100 gallons per day. Built with polypropylene housings and sized 16 x 5.25 x 17.5 inches, it recorded 100 recent buyers in this data set.
Reverse osmosis systems work by forcing water through a semipermeable membrane, which is why they generally address a broader range of dissolved contaminants than carbon-only pitchers or dispensers. The tradeoff is slower production and some drain water use, standard for RO rather than a downside specific to this unit.
- Reverse osmosis purification
- 100 gallons per day rated capacity
- Under-sink install type
- Polypropylene construction
Who it's for
Households wanting whole-kitchen reverse osmosis filtration installed under the sink rather than a countertop or pitcher-based system.
Strengths and trade-offs
Drawn from this product's published specifications.
- Reverse osmosis filtration rather than carbon-only
- Under-sink install keeps it off the counter
- Recently active buyer volume
- RO systems produce drain water as part of the process
- Under-sink install requires plumbing space and setup
Performance notes
Reverse osmosis pushes water through a membrane rather than relying on carbon adsorption alone, which is why RO systems generally address a wider range of dissolved solids than pitcher filters, at the cost of production speed rated here at 100 gallons per day.
Specifications
| Brand | Apec Water |
|---|---|
| Model | ROES-100 |
| Purification | Reverse Osmosis |
| Install Type | Under-Sink |
| Material | Polypropylene |
| Dimensions | 16 × 5.2 × 17.5 inches |
Other Apec Water filtration systems
How it compares
This product against the closest alternatives we track in filtration systems.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| Apec Water ROES-100 Filtration SystemThis product | 4.3 / 5 | 301 | 3.9 / 5 |
| Waterdrop WD-TSU Filtration SystemWaterdrop | 4.5 / 5 | 3,347 | 4.4 / 5 |
| Aqua Crest AQ-5KDC Filtration SystemAqua Crest | 4.4 / 5 | 1,300 | 4.3 / 5 |
| iSpring RO500AK-BN Filtration SystemiSpring | 4.7 / 5 | 562 | 4.2 / 5 |
| Bluevua A-JSJ-LPD-100UV-BMT Filtration SystemBluevua | 4.4 / 5 | 1,356 | 4.0 / 5 |
Similar filtration systems from other brands
Questions about the Apec Water ROES-100
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
How much water can the Apec ROES-100 produce per day?
It is rated for 100 gallons per day.
Where does this system install?
Under the sink, at 16 x 5.25 x 17.5 inches.
What is it made of?
Polypropylene housings.