$300 Off
Waterdrop G3P800 Undersink Tankless Reverse Osmosis System - Black Faucet
Waterdrop G3P800 Undersink Tankless Reverse Osmosis System - Black Faucet
Waterdrop G3P800 Undersink Tankless Reverse Osmosis System - Black Faucet
Waterdrop G3P800 Undersink Tankless Reverse Osmosis System - Black Faucet
Waterdrop G3P800 Undersink Tankless Reverse Osmosis System - Black Faucet
Waterdrop G3P800 Undersink Tankless Reverse Osmosis System - Black Faucet
Waterdrop G3P800 Undersink Tankless Reverse Osmosis System - Black Faucet
Waterdrop G3P800 Undersink Tankless Reverse Osmosis System - Black Faucet
Waterdrop G3P800 Undersink Tankless Reverse Osmosis System - Black Faucet
Waterdrop G3P800 Undersink Tankless Reverse Osmosis System - Black Faucet
Waterdrop G3P800 Undersink Tankless Reverse Osmosis System - Black Faucet
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Waterdrop G3P800 Undersink Tankless Reverse Osmosis System - Black Faucet

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The Waterdrop G3P800 Undersink Tankless Reverse Osmosis System (WD-G3P800-Black) combines powerful filtration, high-capacity performance, and efficient water use in a space-saving design with a black faucet.

  • 10-Stage Filtration: Delivers comprehensive reverse osmosis filtration for cleaner water.
  • Targeted Contaminant Removal: Removes PFAS, fluoride, lead, chromium, and heavy metals.
  • 800 GPD Capacity: Produces up to 800 gallons per day and fills a 6 oz cup in just 5 seconds.
  • Efficient Water Use: Provides a 3:1 pure-to-drain ratio to help minimize water waste.
  • Tankless, Space-Saving Design: Saves 70% of under-sink space and helps prevent secondary contamination.
  • Certified Performance: span style="color: rgb(32, 34, 35); background-color: rgb(246, 246, 247); font-size: 14px;">Meets NSF/ANSI 42, 58, and 372 standards for safety./span>
Item will be shipping on or before 2-3 weeks.

Fast, Free Shipping

30-Day Price Protection

30-Day Worry-Free Returns

1-Year Warranty

24/7 Customer Support

Services and Benefits

Enjoy swift doorstep delivery with every order at no extra cost. Our efficient logistics network ensures your purchases reach you quickly and reliably, so you can start using your new products without delay or hidden fees. Experience convenience that truly moves at your speed.

Enjoy worry-free shopping with our 30-day price protection. If the price drops within 30 days of your purchase, contact us and we’ll refund the difference according to our policy, helping you shop with greater confidence and value.

Shop with complete confidence knowing you have a full month to decide. If you're not satisfied for any reason, our straightforward return process makes it easy to send items back for a prompt refund or exchange—no complicated steps or hassles involved.

Your purchase is protected by an extensive one-year warranty covering manufacturing defects. This long-term commitment guarantees peace of mind and reflects our trust in the durability and quality of the products we offer to you.

Our dedicated support team is available around the clock, every day of the year. Whenever you need assistance, get immediate help via live chat, email, or phone for any questions, ensuring a smooth and supported experience whenever you reach out.

Payment Method

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  • Apple Pay
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Pre-order, ships in 2-3 weeks.
$699.00
$999.00 $300 Off
Waterdrop G3P800 Undersink Tankless Reverse Osmosis System - Black Faucet
Waterdrop G3P800 Undersink Tankless Reverse Osmosis System - Black Faucet
  • Overview
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Authoritative Certification

Authoritative Certification

NSF/ANSI/CAN 372

10-Stage Filtration

10-Stage Filtration

Smart Faucet

Smart Faucet

Water quality at a glance

800GPD Fast Flow

800GPD Fast Flow

LED Function

LED Function

Water Tastes & Smells Unpleasant?

Reduces common substances such as chlorine and other impurities that may affect taste and odor, helping improve overall drinking water freshness.

Taste Before
Taste After
Safety Before
Safety After
Flow Before
Flow After
Environment Before
Environment After

Upgrade Your Drinking Experience

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  • Pellentesque convallis accumsan

Installation

Easy Installation in 30 Minutes

The Waterdrop G3P800 allows for easy 30-minute DIY installation with its all-in-one kit — no plumbing skills required.

Saves 1200% Water

Sustainability

Saves 1200% Water

Waterdrop G3P800 provides a sustainable and eco-wise water solution.

Upgrade Filtration: Go Healthier

  • Reduces PFOA & PFOS by 99%

    Reduces PFOA & PFOS by 99%

    Advanced RO filtration helps reduce up to 99% of PFOA and PFOS, helping protect your family from harmful PFAS contaminants in drinking water.

  • 0.0001μm RO Filtration

    0.0001μm RO Filtration

    The 0.0001μm RO membrane effectively reduces over 1,000 contaminants including heavy metals, chlorine, and dissolved solids for cleaner water.

  • Automatic Flushing Design

    Automatic Flushing Design

    The automatic flushing system cleans the RO membrane regularly, helping prevent buildup and maintain stable filtration performance.

More Details About Product

MEDIA ATTENTION

Reverse-osmosis systems have membranes that remove all your standard contaminants, plus extras like viruses, bacteria and parasites. Waterdrop G3, for example, carries an NSF 58 certification, which is one of the highest filtrations possible.

Waterdrop (G3P800) is NSF 58 certified, one of the highest standards, so it can stand up to everything from heavy metals to pharmaceuticals to PFAS.

Waterdrop RO System is one of the most popular options for homeowners who are interested in saving space and conserving water.

Ranked as one of the best reverse osmosis systems, the Waterdrop tankless model has high output for large households.

The Waterdrop G3P800 is a multi-certified cutting-edge tankless reverse osmosis water filtration system that packs a lot of modern, advanced features, including a space-saving design, a large filtration capacity, a smart LED reminder, and upgraded filtration capabilities.

REVIEW

Hear From Our Pros

Discover why experts trust the Waterdrop Undersink RO System! Enjoy purified water instantly, with space-saving convenience perfect for your kitchen.
G3P800-Black
Specification
G3P800-Black
Model
G3P800
Pure to Drain
3:1
Product Dimensions (In)
18.11*5.67*17.73
Product Weight (Ib)
32.4 pounds
Certification
NS/ANSI 42 & 53 & 58 & 372
Filtration
10-stage Filtration
Capacity
800GPD
Faucet
Smart Faucet
Usage
Indoor use only
Electricity Required
Yes

In The Box (15)

User Manual
  • System x1

    System

  • Replacement Filters x1

    Replacement Filters

  • Faucet x1

    Faucet

  • Power Adapter x1

    Power Adapter

  • UV Sterilizer x1

    UV Sterilizer

  • Feed Water Adapter3/8"-1/2" x1

    Feed Water Adapter3/8"-1/2"

  • Drain Saddle 1/4" x1

    Drain Saddle 1/4"

  • White 3/8" PE Tubing x1

    White 3/8" PE Tubing

  • Red 1/4" PE Tubing x1

    Red 1/4" PE Tubing

  • Teflon Tape x1

    Teflon Tape

  • Lock Clips x5

    Lock Clips

Compare  

Undersink RO

Compare
Undersink RO

Waterdrop G3P800 Undersink Tankless Reverse Osmosis System - Black Faucet

G3P800-Black

$699.00
$999.00 $300 off
G3P600 Reverse Osmosis System - Waterdrop G3P600

G3P600

$539.00
Waterdrop X Series Reverse Osmosis System, X12

X12

$1,299.00
Flow Rate
Flow Rate 800GPD 600GPD 1200GPD
Alkaline Mineralization
Alkaline Mineralization × × √
Pure to Drain
Pure to Drain 3:1 2:1 3:1
Faucet
Faucet

Smart Display Faucet

TDS & filter life monitor

Smart Display Faucet
TDS & filter life monitor

Digital Control Faucet
TDS & filter life monitor
Adjustable water volumes

Filter Lifespan
Filter Lifespan

CF 6 Mths
CB 12 Mths
G3P800-RO 24 Mths

CF 6 Mths

CB 12 Mths

G3P600-RO 24 Mths

F1A 12 Mths

F2 6Mths

X12-F3 24 Mths

Average Annual Cost
Average Annual Cost $159.97 $144.97 $172.97
Warranty
Warranty 1 Year 1 Year 2 Years
Certification
Certification NS/ANSI 42 & 53 & 58 & 372 NSF/ANSI 42 & 58 & 372 NSF/ANSI 42 & 58 & 372
Product Dimensions (In)
Product Dimensions (In) 18.11*5.67*17.73 18.11*5.67*17.73 18.2*6.25*16.72
Product Weight (Ib)
Product Weight (Ib) 32.4 pounds 32.4 38.93 pounds
Model
Model G3P800 G3P600 X12
Filtration
Filtration 10-stage Filtration 8-stage Filtration 11-stage Filtration
Capacity
Capacity 800GPD 600GPD 1200GPD
Usage
Usage Indoor use only Indoor use only Indoor use only
Electricity Required
Electricity Required Yes Yes Yes

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FAQ

Curious about how the RO filter works? Our FAQ section covers everything from filter lifespan to installation tips for clean, pure water every day.

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What contaminants does the G3P800 RO system reduce?

Tested by a third party lab, Waterdrop G3P800 utilizes a 10-stage filtration process, effectively reducing impurities such as PFOA, PFOS, fluoride, heavy metals (e.g., lead, chromium, arsenic), salts (e.g., nitrate, chloride), and large particles.

How often should I replace the filters?

CF Filter: Every 6 months or after filtering 550 gallons, whichever comes first.
CB Filter: Annually or after filtering 1,100 gallons, whichever comes first.
RO Filter: Every 2 years or after filtering 2,900 gallons, whichever comes first.

How easy is it to install the G3P800?

Waterdrop G3P800 under sink RO system enables easy DIY installation with clear step-by-step instructions and an instructional video for installation.

What's Cool About The Smart Faucet Included With This Undersink Reverse Osmosis System?

This isn't your ordinary faucet – it's armed with smart tech! The innovative setting has a quantitative water intake function, which eliminates the need to guard and wait when receiving water so that the water waits for you! And you can get real-time updates of your filter life and TDS value, ensuring water quality at all times.

If I Have Any Issues, Who Can I Contact For Support?

Hit us up anytime – our dedicated customer support team is here to help you troubleshoot. You're covered with a robust after-sales service, and we'll get your issue squared away in no time.

Learn More About G3P800 & Water Filtration

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