Waterdrop G3P800
An 800 GPD premium tankless RO system built for larger households, combining fast output, a 3:1 pure-to-drain ratio, UV sterilization and smart TDS monitoring.
Buying Options
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Who This Water Filter Is Best For
A strong premium choice for larger households that want substantially more output than the G3P600 while keeping a tankless footprint and adding built-in UV sterilization.
Choose the G3P800 if you want 800 GPD, UV sterilization and a more efficient 3:1 pure-to-drain ratio; choose a lower-capacity system if price matters more than maximum output.
Great Fit If…
Worth Knowing
Water Filter Specifications
Certifications & Contaminant Reduction
Certifications / Testing
Reduction Claims
No contaminant-reduction claims are currently listed.
How It Rates
What Stands Out
Pros
- 800 GPD high-capacity output
- 3:1 pure-to-drain efficiency
- Built-in UV sterilization
- Smart faucet with TDS and filter-life monitoring
- Tankless space-saving design
- Strong certification profile
Cons
- Premium purchase price
- Requires under-sink plumbing and power
- No built-in remineralization on the standard G3P800
- Higher annual filter cost than some lower-capacity systems
Is Waterdrop G3P800 Worth It?
The Waterdrop G3P800 is worth considering for high-use households that want a premium tankless RO system with fast output, UV sterilization and smart monitoring. Its biggest drawbacks are price and the lack of built-in remineralization on the standard model.
Check Current Price & Availability
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Stanley Quencher H2.0 FlowState
Everyday hydration made easy with cold-holding insulation, a 3-position lid, reusable straw, and cup-holder-friendly design.
Perfect for LMNT, Liquid I.V., Ultima, Cure, and other electrolyte drinks.
Deal price: $27.99 + eligible $5 pickup savings.
Eligibility varies by product, account, location, and pickup availability.