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Installed under-sink ROUnder-sink reverse osmosis
APEC ROES-100 5-Stage 100 GPD Reverse Osmosis (Essence)
A basic under-sink RO option when TDS reduction is the main verified claim you need.
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Best fit
Buyers who want a conventional RO system and are not relying on broad per-SKU NSF 53 contaminant coverage.
Not a fit if
Lead/PFAS-first shopping, where SmartFlow has the stronger verified cert profile.
Certification evidence
This table comes from our product-level certification map, not from a brand-level assumption. We separate verified third-party claims from caveated manufacturer-stated claims.
| Standard | Claim scope | Status |
|---|---|---|
| NSF/ANSI 58 | Reverse Osmosis Drinking Water Treatment Systems with Storage Tank and Auto Shut-off Valve | Verified |
| NSF/ANSI/CAN 372 | Lead Content (lead-free system materials) | Verified |
Verified reductions / claims
- NSF/ANSI 58: TDS
- NSF/ANSI/CAN 372: materials / system-component certification; not a contaminant-reduction list