Waterdrop G5P500 Under Sink Reverse Osmosis System

Waterdrop G5P500 Under Sink RO System for Tankless Convenience

Designed for modern kitchens and healthy lifestyles, the Waterdrop G5P500 Under Sink Reverse Osmosis System is a compact, tankless filtration solution built for fast performance and dependable purity. Available in G5P500 and G5P500A variants, it delivers clean, great-tasting water tailored to your needs.

Both models feature advanced multi-stage filtration with a high-precision RO membrane that reduces contaminants such as chlorine, lead, fluoride, nitrates, PFAS, heavy metals, and other impurities, while improving taste and odor.

With a high-speed 500 GPD flow rate, purified water is available in seconds, eliminating wait time at the tap. The space-saving tankless design frees up valuable under-sink storage and helps prevent secondary contamination.

Choose your variant:

G5P500 – Pure RO-filtered water with efficient, streamlined performance

G5P500A – Adds alkaline remineralization for enhanced taste and balanced daily hydration

The Waterdrop G5P500 series combines effective purification, smart design, and tank-free convenience for households that want clean water on demand without bulky storage tanks.

G5P500 RO System: Key Features

Advanced 7-Stage Filtration - The G5P500 features a precise 7-stage filtration system that reduces harmful contaminants such as PFOA, PFOS, chlorine, lead, fluoride, heavy metals, and more. This ensures every drop of water is pure, safe, and free from unpleasant taste and odor—delivering a clean and refreshing drinking experience.

Advanced 8-Stage Filtration - The G5P500A features an upgraded 8-stage filtration system designed to reduce harmful contaminants such as PFOA, PFOS, chlorine, lead, fluoride, heavy metals, and other impurities. This enhanced process delivers clean, safe drinking water while eliminating unpleasant tastes and odors for a consistently fresh, great-tasting experience.

0.0001μm RO Membrane - Equipped with a high-precision 0.0001μm RO membrane, the G5P500 effectively filters out particles larger than 0.0001μm, ensuring exceptional water purity. This advanced technology guarantees water that’s not only clean but also crisp and great-tasting.

Space-Saving Tankless Design - Ditch bulky tank systems—the innovative tankless design of the G5P500 saves up to 70% more under-sink space. Its sleek, compact build blends seamlessly into modern kitchens, making it ideal for minimalist and space-conscious homes.

500 GPD Steady Flow - With an impressive 500 gallons-per-day capacity, the G5P500 provides a consistent and fast water flow—filling a 6 oz cup in just 8 seconds. Perfect for busy households needing quick access to purified water without delay.

2:1 Pure to Drain Ratio - This RO system offers a high-efficiency 2:1 pure-to-drain ratio, producing up to 400% more purified water than traditional systems. It’s a cost-effective and eco-friendly choice that reduces water waste while maximizing output.

G5P500 RO System: Filter with Confidence, Drink Purely

This 7-stage RO water filter removes over 1,000 impurities, including sediments, chlorine, fluoride, heavy metals, PFOA, PFOS, bacteria, lead, odors, and more, ensuring pure water.

G5P500 RO System with Clearix®Technology

Keeps every glass of water pure and delicious.

G5P500 RO System: Compact Size, Saves More Space

This tankless RO system frees up 70% of under-sink space for convenience.

G5P500 RO System: Fast & Stable Flow, Zero Waiting

With a stable 500GPD flow rate, enjoy instant access to pure water without a tank or any delays, while minimizing the risk of bacterial growth.

What's Included with the G5P500 RO System

1x RO System
1x RO Replacement Filter
1x CF Replacement Filter
1x RO Faucet
1x Power Adapter
1x Blue 3/8" PE Tubing
1x Feed Water Adapter 3/8" - 1/2"
1x Teflon Tape
1x Drain Saddle 1/4"
1x Red 1/4" PE Tubing
4x Large Clips
2x Small Clips

G5P500 Under Sink RO System Replacement Filters

WD-RG15-CF Filter (CF Filter) - service life of up to 6 months and a capacity of 1,056 gallons

WD-RG15-RO Filter (RO Filter) - service life of up to 24 months and a capacity of 2,112 gallons