Waterdrop G3P600 vs Waterdrop G3P800
Two of the reverse osmosis systems in our best reverse osmosis systems comparison, lined up spec by spec. Every figure comes from the manufacturer pages linked below, and the scores use the same published formula as the full ranking.
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Best for: 8-stage 600 GPD tankless RO, NSF/ANSI 42 and 58 named, 2:1 pure-to-drain
Check price at AmazonBest for: 9-stage 800 GPD tankless RO with UV, NSF/ANSI 58 named, 3:1 pure-to-drain
Check price at AmazonSpec-by-spec comparison
Green marks the better published figure. "Not listed" means the manufacturer doesn't publish it.
| Spec | Waterdrop G3P600 | Waterdrop G3P800 | Weight |
|---|---|---|---|
| Daily productionThe maker's rated gallons per day, usually at a stated feed pressure. Missing values take the category minimum. | 600 GPD | 800 GPD | 24% |
| NSF/ANSI 58 namedYes when the official page names NSF/ANSI 58 (or WQA certification to 58). A generic certified claim without the standard is No. | Yes | Yes | 20% |
| Broader named certificationYes when the official page names an additional NSF/ANSI standard such as 42 or 53, or lists certified contaminant reductions beyond TDS. NSF/ANSI 372 (lead-free materials) alone is not enough. | Yes | No | 16% |
| Drain water per product gallonComputed from a clearly worded pure-to-drain or product-to-waste ratio. Lower is less wastewater. Missing values, including traditional tank systems that do not publish a ratio, take the category minimum. | 0.5 gal/gal | 0.333 gal/gal | 16% |
| Filtration stagesStage count the maker lists. Missing values take the category minimum. | 8 | 9 | 12% |
| WarrantyLimited warranty length the official page publishes, in years. Missing values take the category minimum. | Not listed | Not listed | 12% |
| Daily production (maker) | 600 gallons per day | 800 gallons per day (max daily production rate, official spec table) | info |
| Filtration stages (maker) | 8 stages | 9 stages | info |
| NSF/ANSI 58 (maker) | Official page headline: NSF/ANSI 42&58&372 Certified | Official page: NSF/ANSI 58 & 372 certified, including TDS reduction under 58 | info |
| Broader named certification | Official page names an additional NSF/ANSI standard (for example 42 or 53) or certified reductions beyond TDS | Not listed as a broader named certification on the page we used | info |
| Drain ratio (maker) | 2:1 pure-to-drain (official page: 2:1 Pure to Ratio / 2:1 pure-to-drain on the same official listing family) | 3:1 drain ratio / 3:1 pure-to-drain (official page) | info |
| Drain water per product gallon | 0.5 gal/gal (computed) | 0.333 gal/gal (computed) | info |
| Warranty (maker) | Not listed | Not listed | info |
| Design (maker) | Tankless, smart display faucet | Tankless with UV sterilizer | info |
| Package weight (maker) | 32.4 pounds (official compare table on this product page) | Not listed | info |
| Size (maker) | Not listed | 18.06" x 5.65" x 17.75" (official table) | info |
| HydroPick score | 5.3/10 | 4.1/10 | 100% |
Where each one comes out ahead
Waterdrop G3P600
Better published figure on: Broader named certification.
What we like
Watch out for
- Warranty not published by Waterdrop
Waterdrop G3P800
Better published figure on: Daily production, Drain water per product gallon, Filtration stages.
What we like
Watch out for
- Warranty not published by Waterdrop
Verdict
Two Waterdrop G3 tankless systems. The official pages list 600 GPD, 8 stages, a 2:1 pure-to-drain ratio and NSF/ANSI 42 and 58 on the G3P600, and 800 GPD, 9 stages, a 3:1 ratio, UV and NSF/ANSI 58 and 372 on the G3P800.
- Waterdrop G3P600: Waterdrop: G3P600
- Waterdrop G3P800: Waterdrop: G3P800