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Head-to-head · Best Reverse Osmosis Systems

APEC ROES-50 Essence vs Waterdrop G3P800

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

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The short answer

Waterdrop G3P800 comes out ahead by a narrow margin (4.5 vs 4.6). The gap is mostly about Households that want the fastest, most space-efficient certified RO water and don't mind paying a premium for a smart tankless system. — read the strengths below before deciding.

APEC ROES-50 Essence
Ranked #2 in Best Reverse Osmosis Systems
APEC ROES-50 Essence
3 sources2 derived$195.65as of Aug 1

The APEC ROES-50 Essence is the reliable workhorse of RO systems, a WQA Gold Seal NSF/ANSI 58 certified 5-stage unit that TechGearLab scored 96 out of 100, the highest tested score in this roundup. Lab testing brought every critical contaminant, lead, arsenic, uranium, PFNA, to undetectable levels. There's no remineralization and the tank eats space. As a proven, durable, high-performing pure-RO system at a fair price, it's outstanding.

Strengths
  • — WQA Gold Seal certified to NSF/ANSI 58 for TDS reduction
  • — TechGearLab scored it 96/100, bringing every critical contaminant to undetectable levels
  • — Reliable 5-stage filtration removing up to 99% of contaminants
Watch-outs
  • — No remineralization stage, so beneficial minerals are removed
  • — Tank takes up significant under-sink space
  • — Slower dispensing and more water waste than tankless systems
$195.65 · Check Price on AmazonFull review →
Waterdrop G3P800
Higher ratedRanked #1 in Best Reverse Osmosis Systems
Waterdrop G3P800
3 sourcesall derived$699as of Aug 1

The Waterdrop G3P800 is the best overall reverse osmosis system, a tankless 800 GPD unit that's NSF/ANSI 42, 53, 58 and 372 certified and dispenses fast with no storage tank. It posted one of the best efficiency ratios of any tankless RO tested at 3:1 pure-to-drain, and lab testing confirmed 93-95% TDS reduction. Its only real gaps are price and the missing built-in remineralization, which Waterdrop sells separately.

Strengths
  • — NSF/ANSI 42, 53, 58 and 372 certified, covering taste, health contaminants, TDS and lead-free materials
  • — Tankless 800 GPD design dispenses fast and saves under-sink space
  • — Excellent 3:1 pure-to-drain efficiency, among the best of any tankless RO tested
Watch-outs
  • — Premium price versus traditional tank-based RO systems
  • — No built-in remineralization; water can taste flat without the add-on
  • — Requires electricity and a drain connection
$699 · Check Price on AmazonFull review →

Derived means the reviewer published no score, so one was inferred from their written verdict. Everything else is a number the publisher printed. How we rank.

How they stack up

APEC ROES-50 Essence

A pure-RO alternative to the remineralizing iSpring RCC7AK and APEC ROES-PH75, with the highest tested score in this group. Cheaper and simpler than the tankless Waterdrop G3P800 and Waterdrop D6, but with a bulkier tank and slower dispensing.

Waterdrop G3P800

More certified standards and faster flow than the tank-based iSpring RCC7AK and APEC ROES-50, and a higher GPD than the Waterdrop D6. Unlike the iSpring RCC7AK and APEC ROES-PH75, it doesn't include remineralization, trading that for tankless speed and efficiency.

Specs side-by-side

SpecAPEC ROES-50 EssenceWaterdrop G3P800
Type5-stage tank ROTankless RO
Output50 GPD800 GPD
Contaminant RemovalUp to 99%—
Tested Score89/100 (TechGearLab)—
Chlorine Removal100% (lab)—
Fluoride Removal94.7% (lab)—
RemineralizationNoneOptional add-on
CertificationsWQA Gold Seal CertifiedNSF/ANSI 42, 53, 58, 372
TDS ReductionUp to 99%93-95% (lab tested)
Contaminants1,000+ including PFAS, fluoride, chromium1,000+ including PFAS, fluoride, chromium
PFAS Reduction96-99%—
Tank4-gallon storage4-gallon storage
TDS RemovalUp to 99%—
Pre-filtersExtra high-capacity stage 1-3—
MaterialPlastic—
Dimensions16"L x 5.25"W x 17.5"H18.12"L x 5.67"W x 17.72"H
Pure-to-Drain—3:1
Faucet—Smart LED (TDS + filter life)
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