Waterdrop
G3P800 RO System with an Extra Two-Year Filter Combo
Best high-capacity filtration for families seeking pure, space-saving water solutions.
Experience superior water purification with the Waterdrop G3P800 RO System. This tankless reverse osmosis filter delivers exceptionally pure drinking water, ideal for both homes and small businesses. Its advanced 9-stage filtration and 7-layer RO membrane remove over 1000 contaminants down to 0.001 microns. An integrated LED UV sterilizer ensures 99.9% of bacteria and viruses are eliminated. Enjoy convenience with its space-saving tankless design and a smart faucet providing real-time water quality and filter status. With an 800 GPD capacity and a 3:1 water-saving drain ratio, it offers efficiency and purity.
$1318.93
Owner Satisfaction
4.6
/ 5
Category Rank
39
/ 862
#39 in Water Filters
Price vs Category Average
+145%
Above average
Capacity
800
/ GPD
Who it's for
- Busy households needing instant access to filtered water
- Budget-conscious buyers prioritizing long-term maintenance savings
- Urban dwellers with limited under-sink storage space
Who should skip it
- Shoppers restricted by a strict upfront budget
- Users sensitive to noise in quiet kitchen environments
- Renters or homeowners lacking necessary electrical and plumbing access
Performance breakdown
Purification Depth
Nine-stage filtration captures contaminants down to an impressive 0.001 microns.
Flow Rate
The 800 GPD capacity ensures near-instant water access for busy households.
Space Efficiency
Tankless design reclaims valuable under-sink real estate for better storage.
Water Conservation
A 3:1 drain ratio minimizes waste compared to standard RO systems.
Maintenance Visibility
Smart faucet indicators remove the guesswork from tracking filter life.
Microbial Safety
Integrated UV sterilization provides an essential final layer of biological protection.
Key Specs
Capacity
800 GPD
Filtration Stages
9
RO Membrane
7-layer
Micron Rating
0.001 microns
Drain Ratio
3:1
Housing Material
BPA-Free Plastic
Smart Features
Yes
Filter Change Indicator
Yes
Features
- Tankless design saves under-sink space
- 9-stage filtration for superior purity
- LED UV sterilizer eliminates 99.9% of microbes
- Smart faucet displays real-time water quality
- 800 GPD capacity for high demand
- Water-saving 3:1 drain ratio
- Easy installation and maintenance
- Optional remineralization filter available
What customers say
Customers generally express high satisfaction with the Waterdrop G3P800 RO System, particularly appreciating its advanced filtration capabilities that deliver exceptionally clean and great-tasting water. Many highlight the significant improvement in water quality compared to tap water, often noting the removal of unpleasant odors and tastes. The tankless design is a frequently praised feature, saving valuable under-sink space and providing a continuous, on-demand supply of filtered water with an impressive flow rate, which is a common pain point for traditional RO systems. Installation, while requiring some DIY effort, is often described as manageable for those with basic plumbing knowledge, with clear instructions and helpful videos available. A standout positive is undoubtedly the 'Extra Two-Year Filter Combo,' which adds substantial long-term value and convenience, alleviating concerns about immediate filter replacement costs and ensuring prolonged optimal performance. Users also commend the system's sleek design and relatively quiet operation. While the initial investment is noted, the perceived health benefits, superior water quality, and the included filter combo strongly justify the cost for most users. Some minor points of feedback occasionally touch on the complexity of initial setup for absolute beginners or the desire for even more detailed troubleshooting guides, but these are generally overshadowed by the overwhelmingly positive experience with water purity and system efficiency. The G3P800, especially with the filter combo, is widely regarded as a premium, high-performing RO solution that delivers on its promises.
Know before you buy
The G3P800 features a tankless design, which significantly reduces its footprint compared to traditional RO systems. It stands 17.7 inches tall, leaving plenty of room for other under-sink storage.
Yes, a drain connection is required for the system to discharge the concentrated wastewater. The G3P800 is highly efficient, boasting a 3:1 drain ratio, meaning it produces three cups of pure water for every one cup of wastewater.
The system includes a smart faucet that displays real-time water quality and filter status. An integrated indicator light will alert you when it is time to change the filters, taking the guesswork out of maintenance.
Yes, the 9-stage filtration process and 7-layer RO membrane are designed to remove over 1,000 contaminants, including lead, chlorine, and PFAS, down to 0.001 microns. It is also certified to NSF/ANSI standards 42, 53, and 401 for comprehensive contaminant reduction.
The LED UV sterilizer is integrated directly into the system and is powered by the main unit. It activates automatically to eliminate 99.9% of bacteria and viruses, ensuring your water is safe without needing extra electrical outlets.
Yes, the G3P800 supports an optional remineralization filter. This can be added to the system if you prefer the taste of mineralized water over the standard purified output.
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$1319