Many reverse osmosis systems are available on the market, but the Waterdrop G2 and G3 systems stand out. These tankless water filtration systems are affordable, easy to install, and sleek options that don’t take up too much space.
However, you may be stuck deciding between a Waterdrop G2 vs G3 filter model for your household. The systems are similar, but there are some key differences that you should be aware of to make an informed choice.
As water filtration experts, we understand the ins and outs of both systems and will help you pick what’s right for you. So, keep reading further, and let’s break down the differences between a Waterdrop G2 vs G3 system.
Overview of the Waterdrop G2 vs G3 Systems
To start this comparison, we will provide a list of the main manufacturer specifications of these systems. If you are unfamiliar with water filter terminology, don’t worry, as we will be explaining the benefits of the systems in the following sections.
WD-G2-B Overview
Main Specifications:
- Filtration Stages: 7-stage filtration system.
- Filtration Accuracy: 0.0001-micron filtration accuracy.
- Contaminant Removal: Can reduce total dissolved solids (TDS), PFAs, PFOA, and other contaminants.
Flow Rate and Efficiency:
- Daily Production Rate: Up to 400 gallons per day (GPD).
- Pure to Drain Ratio: 1:1, indicating the system discards one gallon for every gallon of purified water produced.
Design and Dimensions:
- Dimensions: 17.33″ (Length) x 5.91″ (Width) x 13.98″ (Height)
- Weight: Approximately 20.94 pounds.
- Color Options: Available in black (WD-G2-B) and white (WD-G2-W).
Installation and Usage:
- Installation Location: Designed for under-sink installation.
- Usage Environment: Indoor use only.
- Feed Water Requirements: Water pressure between 14.5-87 psi (0.1-0.6 MPa).
Certifications:
- NSF/ANSI 372 Certified: Indicates compliance with standards for material safety.
WD-G3-W Overview
- Filtration Stages: 8-stage filtration system.
- Filtration Accuracy: 0.0001-micron filtration accuracy.
- Contaminant Removal: It can reduce chlorine, heavy metals, total dissolved solids (TDS), lead, and other impurities.
Flow Rate and Efficiency:
- Daily Production Rate: Up to 600 gallons per day (GPD).
- Pure to Drain Ratio: 2:1, meaning the system discards one gallon of water for every two gallons of purified water produced.
Design and Dimensions:
- Dimensions: Compact tankless design for space-saving installation.
- Weight: Approximately 32.4 pounds
- Color Options: Available in white (WD-G3-W).
Installation and Usage:
- Installation Location: Designed for under-sink installation.
- Usage Environment: Indoor use only.
- Feed Water Requirements: Water pressure between 14.5-87 psi (0.1-0.6 MPa).
Certifications:
- NSF/ANSI 58 Certified: Ensures the system meets TDS reduction and contaminant removal standards.
- NSF/ANSI 372 Certified: Indicates compliance with lead-free material standards.
Smart Features:
- Smart Faucet: A monitoring panel displays real-time water quality and filter status.
- Automatic Flushing: The system automatically flushes after two hours of operation to maintain filter efficiency.
Comparing Key Features
Filtration Technology
The Waterdrop systems utilize multiple layers, including several reverse osmosis stages. The Waterdrop G2 has a 7-stage filter that eliminates impurities in various sizes. G2’s filtration system comprises composite filters and reverse osmosis membranes.
From total dissolved solids to chlorine, your water will be pure once it goes through the system under your sink. The Waterdrop G3 has an 8-stage filter, which includes a pre-sediment and carbon block, reverse osmosis membrane, and additional water purification steps.
Once the tap water passes through the filter, you can pay extra for a system that provides a mineralization, alkaline, or UV sterilization phase. The mineralization process adds beneficial minerals like calcium and magnesium into the water.
The alkaline process will balance the pH of the water, making it slightly alkaline for improved taste and hydration. Lastly, the UV sterilizer is an optional feature that will add an extra disinfection stage against harmful bacteria and viruses.
Tankless Designs
The Waterdrop G2 and G3 are tankless water filtration systems meant to be installed under your sink. Without a storage tank, they use a direct-flow system that is activated each time you turn your dedicated RO faucet handle.
Many people complain about water filters with tanks, as they are bulky and can develop bacterial growth that impacts water quality. Since the water comes straight from the tap to the filter, it won’t stagnate underneath your sink.
Tankless water filters remove the bulky design that often makes it a hassle to fit underneath your sink. If you have limited space under your sink, you will likely still be able to find space for the installation.
Water Flow Rate
The Waterdrop G2 vs G3 differ in the flow rate they provide, with the G3 having a faster output. Waterdrop’s G2 model has a daily flow rate of 400 gallons per day (GPD), which is suitable for small or medium households with average water consumption.
With the Waterdrop G2, filling an average-sized glass of water takes around 12 seconds. However, in recent updates, the G3P400 has gone out of production and is now standard with a 600-gallon-per-day (GPD) output. We will update this section if it becomes in stock again.
When designing the G3, Waterdrop aimed to speed up this process, achieving a 60% faster flow rate. The G3P600 will fill up a standard glass of water in around 8 seconds and utilize less tap water to produce the purified water.
Performance and Efficiency
Waterdrop’s G2 and G3 systems do an incredible job of removing contaminants from water. The maximum daily water output for the Waterdrop G2 is around 400 gallons per day, far more than any household would need daily.
With the new and improved design, you can also choose the Waterdrop G3, which produces 600 gallons of water daily. Depending on your needs, you can also purchase a larger-capacity filter that produces 800 gallons daily.
The compact designs consume less energy while providing safe water for drinking, cooking, and washing. When purifying water, the Waterdrop G2 requires two gallons to dispense one gallon.
This 1:1 ratio is far better than many reverse-osmosis systems, which usually maintain a 1:3 or 1:5 ratio. However, Waterdrop took it even further, and their G3 model utilizes three gallons of water to produce 2 gallons of purified water with a 2:1 pure-to-drain ratio.
If you are environmentally conscious, you won’t find a better option than a tankless system like the Waterdrop G2 and G3. The water filtration systems keep the waste to a minimum and reduce your carbon footprint while receiving purified water.
Installation and Maintenance
Waterdrop’s tankless water filtration is designed for easy installation under your home’s sink. You will have no problem putting this together without a professional’s help if you have general DIY knowledge and a few basic hand tools.
Inside the Waterdrop G2 system’s box, you will receive the following components:
- Assembled System
- Tubing and Connectors
- Dedicated RO Faucet
Some of the things not included in the system’s box are basic tools required for installation. These tools include an adjustable wrench, a Philips screwdriver, and an electric drill if there is no pre-drilled hole on your countertop for the faucet.
The Waterdrop G3 system will have a similar installation, but the box will include a digital display for the TDS monitoring and filter life. With the G3, you will receive updates on when to replace the filter components.
This monitor makes maintenance easy for the G3, while you must stay proactive with the G2 to ensure proper upkeep. Below is a general timeline for when you should replace components of the Waterdrop G2 system:
- Composite Filter – Replace every 6 months
- RO Membrane Filter – Replace every 24 months
Maintenance for the G3 system is similar but includes a different filter type and an additional filter. The maintenance timeline for the Waterdrop G3 includes the following:
- Pre-Sediment and Carbon Block Filter (PP+CB) – Replace every 6 months
- Reverse Osmosis Membrane (MRO) – Replace every 24 months
- Carbon Block Polishing Filter (CB) – Replace every 12 months
Pricing and Value for Money
The Waterdrop G2 and G3 are high-performance tankless water filters, but come at different costs. Waterdrop’s G2 is a more budget-friendly option, but it does not have the more advanced features or higher daily water output of the G3 system.
If you value reliability and don’t mind not having the latest features, the Waterdrop G2 is an excellent choice. This older water filtration model offers lower upfront costs and less costly replacement filters.
Are you interested in integrating smart home features into your daily life? The Waterdrop G3 is the system for you. Unlike the previous generation, it has real-time TDS monitoring and a digital display.
Additionally, if you live in an area with very poor water quality, it’s a better idea to choose the G3 model. The Waterdrop G2 has no pre-sediment and carbon block filter that removes large impurities.
Customer Reviews and Feedback
Waterdrop is a reputable brand of water filtration systems, so the feedback is generally positive for both systems. However, the praise for the Waterdrop G2 generally highlights the ease of installation, affordability, and compact design.
The water filter is a no-frills design that gives you pure water and lasts for many years with minimal maintenance. On the other hand, the Waterdrop G3 is praised for its faster flow rate, advanced features, and superior filtration.
Pros and Cons of Each System
Waterdrop G2 System
Pros
Cons
Waterdrop G3 System
Pros
Cons
Recommendations
Choosing between Waterdrop G2 vs G3 will depend on your budget, priorities, and household water requirements. Below is what we think the right choice is based on your circumstances when considering Waterdrop G2 vs G3.
When to Use the Waterdrop G2
The Waterdrop G2 requires a lower initial investment and is ideal for smaller households with standard water usage. With a flow rate of 0.27 gallons per minute, you can get pure water in a moderate timeframe and receive it from the dedicated spout.
Additionally, this is an ideal option if the water in your area is relatively clean and not full of sediment or chlorine. In most cases, we recommend the Waterdrop G2 to our readers, as it meets most household requirements.
Click Here to Check the Price of the Waterdrop G2
When to Use the Waterdrop G3
The Waterdrop G3 is the preferred choice if you want the best quality water and features. Its pre-sediment and carbon block filters eliminate more impurities than the G2 model. Additionally, you can choose the added mineralization, alkaline, and UV sterilization features.
These features will further improve your drinking water and provide you with superior hydration. While the upfront cost is higher, the advanced smart features and faster flow rate may be more beneficial for your lifestyle and preferences.
Click Here to Check the Price of the Waterdrop G3
Conclusion
When comparing the Waterdrop G2 and G3, both systems are excellent choices for tankless reverse osmosis water filtration, offering clean and safe drinking water while saving space.
The decision ultimately depends on your budget, water usage needs, and desired features. By weighing your needs and preferences, you can confidently choose the system that fits your lifestyle and enjoy the benefits of purified water every day.