Top 10 Best waterdrop ro filter in 2026

Last Updated - 6/18/2026

🏆Best Choice

Waterdrop

Waterdrop WD-G3-CB Filter, Replacement for WD-G3-W, WD-G3P600 and WD-G3P800-W Reverse Osmosis System, 1-year Lifetime

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•𝐂𝐨𝐦𝐩𝐚𝐭𝐢𝐛𝐥𝐞 𝐦𝐨𝐝𝐞𝐥: For WD-G3-W & WD-G3P600 & WD-G3P800-W
•𝐄𝐧𝐡𝐚𝐧𝐜𝐞𝐝 𝐟𝐢𝐥𝐭𝐫𝐚𝐭𝐢𝐨𝐧: The precision filtration system effectively improves the taste and smell of water. It helps deliver clean and pure water.
•𝐏𝐫𝐞𝐦𝐢𝐮𝐦 𝐦𝐚𝐭𝐞𝐫𝐢𝐚𝐥: This filter boasts a superior coconut shell-activated carbon block with a smaller pore size, which largely adsorbs residual chlorine odor and organics, improving the water’s taste. The activated carbon block is made from natural coconut shells .Please confirm whether you are allergic to it .
•𝐋𝐨𝐧𝐠𝐞𝐫 𝐬𝐞𝐫𝐯𝐢𝐜𝐞 𝐥𝐢𝐟𝐞: It delivers clean and pure filtered water for a full year. It also provides long-term benefits for your family’s health.
•𝐄𝐚𝐬𝐢𝐞𝐫 𝐢𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧: It only takes a twist to change the filter in three seconds. No tools required.

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$29.99

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Waterdrop

Waterdrop WD-G2CF Filter, Replacement for WD-G2-W, WD-G2-B, WD-G2P600-W Reverse Osmosis System,12-month Lifetime

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•𝐂𝐨𝐦𝐩𝐚𝐭𝐢𝐛𝐥𝐞 𝐦𝐨𝐝𝐞𝐥: Waterdrop WD-G2-W, WD-G2-B, WD-G2P600-W, WD-G2MNR-W Reverse Osmosis System
•𝐋𝐨𝐧𝐠 𝐬𝐞𝐫𝐯𝐢𝐜𝐞 𝐥𝐢𝐟𝐞: The filter provides you with 12 months or 1,100 gallons of clean filtered water. To get the best filtered water, please replace the filter according to the replacement cycle
•𝐂𝐨𝐦𝐩𝐨𝐬𝐢𝐭𝐞 𝐝𝐞𝐬𝐢𝐠𝐧: The 2-in-1 front filtration stage effectively reduces sand, rust, particulates, suspended solids, and other impurities, providing you with clean and pure water
•𝐏𝐫𝐞𝐦𝐢𝐮𝐦 𝐦𝐚𝐭𝐞𝐫𝐢𝐚𝐥: The filter uses a superior natural activated carbon block and a sediment PP membrane with a small aperture, efficiently reducing chlorine, taste and odor, and organics
•𝐄𝐚𝐬𝐲 𝐢𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧: You can replace the filter in 3 seconds with a single twist. No tools required

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$29.99

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Waterdrop

Waterdrop G3P600 Reverse Osmosis System, 8 Stage Tankless Reverse Osmosis Water Filter, NSF/ANSI 42 & 58 & 372 Certified, Under Sink RO System, 2:1 Pure to Drain, Smart LED Faucet

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•𝐓𝐫𝐮𝐬𝐭𝐞𝐝 𝐜𝐞𝐫𝐭𝐢𝐟𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬: Waterdrop G3P600 reverse osmosis system is certified against NSF/ANSI 58 for TDS reduction and NSF/ANSI 372 certified for lead-free material. Also it has been tested and certified against NSF 42 to reduce chlorine, bad taste and odor. The tankless reverse osmosis system is also certified by the Federal Communications Commission. Besides, it meets the EU Standards and UKCA Standards for safety.
•𝟖-𝐬𝐭𝐚𝐠𝐞 𝐟𝐢𝐥𝐭𝐫𝐚𝐭𝐢𝐨𝐧: Tested by official third-party laboratory (SGS), the reverse osmosis system can effectively reduce TDS, chromium, PFAS, radium, fluoride, arsenic salt, iron, calcium, particles, chloride, chlorine and radioactive substances in your tap water. And our RO water filter system can reduce chemicals such as vinyl chloride, ethylhexyl acrylate, isobutylene, ethylene glycol, according to the reverse osmosis membrane technical manual.
•𝐒𝐦𝐚𝐫𝐭 𝐝𝐢𝐬𝐩𝐥𝐚𝐲 𝐟𝐚𝐮𝐜𝐞𝐭: The tankless reverse osmosis system is built with a smart display faucet. For instance, the TDS monitor tells you the quality of your filtered water, while the filter life tracker shows how soon you need to replace your filter.
•𝐇𝐢𝐠𝐡 𝐜𝐚𝐩𝐚𝐜𝐢𝐭𝐲, 𝟐:𝟏 𝐥𝐨𝐰 𝐝𝐫𝐚𝐢𝐧 𝐫𝐚𝐭𝐢𝐨: As an upgraded reverse osmosis system, this reverse osmosis water system produces 600 gallons of filtered water per day. By its low drain ratio, this system can produce only one cup of waste water for every two cups of pure water produced. Furthermore, with a fast and stable water flow rate, this RO system fills a 8 oz cup of water in 8 seconds, which is ideal for drinking and washing vegetables.
•𝐓𝐚𝐧𝐤𝐥𝐞𝐬𝐬 𝐝𝐞𝐬𝐢𝐠𝐧: Waterdrop G3P600 reverse osmosis system has a stylish look. This tankless design saves 70% under sink space. You can change a filter in 3 seconds without moving the system or using any tools. Note: This reverse osmosis system requires under-sink electricity.
•Please measure your cabinet dimensions to ensure that the cabinet size is larger than the product size. The product size is 𝟏𝟖.𝟏𝟐"𝐋 𝐱 𝟓.𝟔𝟕"𝐖 𝐱 𝟏𝟕.𝟕𝟐"𝐇.

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$439.00

$539.00

-19%

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Waterdrop

Waterdrop 𝐀𝐥𝐤𝐚𝐥𝐢𝐧𝐞 Water Filter WD-ALK35, Alkaline Filter for Reverse Osmosis System, pH Balance and Restore Minerals for RO Alkaline Filter, Under Sink Water Filter, 1/4" Quick Connect

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•𝐌𝐢𝐧𝐞𝐫𝐚𝐥𝐢𝐳𝐚𝐭𝐢𝐨𝐧 𝐔𝐩𝐠𝐫𝐚𝐝𝐞: Experience the upgrade from pure to healthful water with our innovative Alkaline Mineralization Filter, featuring the PCC technology that elevates your water's pH to an optimal 7.5-9.5, while infusing beneficial minerals for better vitality.【Please Note】The WD-ALK35 filter is not compatible with the X series Reverse Osmosis System.
•𝐍𝐒𝐅/𝐀𝐍𝐒𝐈 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝: Ensuring safety and peace of mind, our alkaline mineral filter guarantees pure water and good match, effectively diminishing the risk of leaks. Savor the convenience of effortless access to alkaline mineral-rich water in the comfort of your home.
•𝐑𝐞𝐯𝐢𝐭𝐚𝐥𝐢𝐳𝐞 𝐘𝐨𝐮𝐫 𝐁𝐨𝐝𝐲: This alkaline mineral filter design to balance your body's pH for improved well-being. Enjoy a boost in metabolism and an infusion of vitality during sports. Furthermore, it enriches the flavor of your coffee and tea, taking your daily hydration to new heights of enjoyment.
•𝐄𝐟𝐟𝐨𝐫𝐭𝐥𝐞𝐬𝐬 𝐈𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧: Designed for hassle-free integration with RO system, undersink filter system, or refrigerator for easy installation. This water solution delivers a steady stream of healthful, mineralized water, transforming your hydration experience at home.
•𝐋𝐨𝐧𝐠-𝐥𝐚𝐬𝐭𝐢𝐧𝐠 𝐋𝐢𝐟𝐞𝐬𝐩𝐚𝐧: Achieve enduring wellness with our alkaline mineralization water filter, guaranteed for 6 months. Savor the taste of healthy, on-tap water without the hassle and cost of frequent replacements or bottled water. Embrace a sustainable choice that combines longevity and affordability.

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$29.99

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Waterdrop

Waterdrop WD-T3-C Reverse Osmosis Water Filter, NSF/ANSI 372 Certified, 8-Stage Under Sink RO Water Filter, 450G Tankless Water Filtration System, 2:1 Pure to Drain, BPA Free, Plug-in Required

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•𝐀𝐝𝐯𝐚𝐧𝐜𝐞𝐝 𝟖-𝐒𝐭𝐚𝐠𝐞 𝐅𝐢𝐥𝐭𝐫𝐚𝐭𝐢𝐨𝐧: The Waterdrop Reverse Osmosis Water Filter — WD-T3-C uses advanced 8-stage filtration to reduce heavy metals, chlorine, PFOA & PFOS with a 0.0001μm RO membrane — delivering pure, great-tasting water every time. *Tested by a third-party laboratory.
•𝐋𝐄𝐃 𝐋𝐢𝐠𝐡𝐭 & 𝐀𝐮𝐭𝐨-𝐅𝐥𝐮𝐬𝐡: Just install and plug in this under-sink RO water filtration system for instant pure refreshment. With an LED light and continuous automatic flushing, every cup of water you get is crisp, clean, and at its purest and freshest. 𝐍𝐨𝐭𝐞: This system requires an electrical connection for operation.
•𝟒𝟓𝟎𝐆𝐏𝐃 𝐅𝐚𝐬𝐭 𝐅𝐥𝐨𝐰 & 𝐒𝐦𝐚𝐫𝐭 𝐀𝐥𝐞𝐫𝐭𝐬: Experience fast, steady 450GPD water flow. Our under-sink RO system's smart alerts remind you when to replace filters, and the all-in-one cartridge enables effortless replacement in seconds — making pure water drinking completely effortless.
•𝟐:𝟏 𝐏𝐮𝐫𝐞 𝐭𝐨 𝐃𝐫𝐚𝐢𝐧 & 𝐋𝐨𝐧𝐠-𝐋𝐚𝐬𝐭𝐢𝐧𝐠 𝐅𝐢𝐥𝐭𝐫𝐚𝐭𝐢𝐨𝐧: Experience eco-efficiency with our ultra-saving tankless reverse osmosis system, boasting an unparalleled 2:1 pure-to-drain ratio, saving precious water resources. The 6-month CF filter, 12-month CB filter, and 24-month RO filter lessen replacement hassles and help the planet, ensuring a sustained clean water supply.
•𝐅𝐥𝐞𝐱𝐢𝐛𝐥𝐞 𝐈𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧: Our compact tankless reverse osmosis system eliminates the need for a bulky storage tank, offering flexible installation options — either under-sink or wall-mounted. Compared to traditional RO systems with tanks, it saves up to 70% of under-sink space.

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$209.99

$279.99

-25%

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Waterdrop

Waterdrop WD-G3-N2RO Replacement Filter, NSF/ANSI 372 Certified, Replacement for WD-G3-W 400 GPD Reverse Osmosis System, 2-year Lifetime

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•𝐂𝐨𝐦𝐩𝐚𝐭𝐢𝐛𝐥𝐞 𝐦𝐨𝐝𝐞𝐥: 𝐎𝐧𝐥𝐲 𝐟𝐨𝐫 𝐖𝐃-𝐆𝟑-𝐖 𝟒𝟎𝟎 𝐆𝐏𝐃 𝐑𝐞𝐯𝐞𝐫𝐬𝐞 𝐎𝐬𝐦𝐨𝐬𝐢𝐬 𝐒𝐲𝐬𝐭𝐞𝐦.
•𝐔𝐩𝐠𝐫𝐚𝐝𝐞𝐝 𝐟𝐢𝐥𝐭𝐫𝐚𝐭𝐢𝐨𝐧: Applies the DOW RO membrane technology with an accuracy of 0.0001μm, reduces over 91.9% of TDS after complete flushing, hexavalent chromium reduction rate is more than 96.9%. Tested against NSF/ ANSI Standards, arsenic reduction rate is more than 99.2%. It can also reduce heavy metals like radium, lead, arsenic, mercury, and radioactive substances which cannot be eliminated by traditional filters.
•𝐋𝐨𝐧𝐠𝐞𝐫 𝐬𝐞𝐫𝐯𝐢𝐜𝐞 𝐥𝐢𝐟𝐞: Delivers clean, filtered water for two years. It is a long-term solution for your family’s health.
•𝐂𝐨𝐦𝐩𝐚𝐭𝐢𝐛𝐢𝐥𝐢𝐭𝐲 𝐭𝐢𝐩𝐬: This replacement filter is 𝐧𝐨𝐭 𝐜𝐨𝐦𝐩𝐚𝐭𝐢𝐛𝐥𝐞 𝐰𝐢𝐭𝐡 the 600 GPD (WD-G3P600) and 800 GPD (WD-G3P800-W) reverse osmosis system. Using this filter with other reverse osmosis systems may impact their performance and lifespan. Please use the WD-G3-N2RO replacement filter only with the compatible 𝐖𝐃-𝐆𝟑-𝐖 RO system for optimal operation and longevity.
•𝐄𝐚𝐬𝐢𝐞𝐫 𝐢𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧: It only takes a twist to change the filter in three seconds. No tools required.

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$92.99

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Waterdrop

Waterdrop G3 Replacement Filter, Replacement for 𝐖𝐃-𝐆𝟑-𝐖 𝟒𝟎𝟎𝐆𝐏𝐃 Reverse Osmosis System, Pack of 1 WD-G3-CF Filter, 1 WD-G3-CB Filter, and 1 WD-G3-RO Filter

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•𝐖𝐚𝐭𝐞𝐫𝐝𝐫𝐨𝐩 𝐫𝐞𝐩𝐥𝐚𝐜𝐞𝐦𝐞𝐧𝐭 𝐰𝐚𝐭𝐞𝐫 𝐟𝐢𝐥𝐭𝐞𝐫 𝐤𝐢𝐭: The three-pack (1 CF filter, 1 N2RO filter and 1 CB filter) replacement water filter kit is designed for Waterdrop 𝐖𝐃-𝐆𝟑-𝐖 Reverse Osmosis System. ⭐𝐎𝐧𝐥𝐲 𝐟𝐨𝐫 𝐖𝐃-𝐆𝟑-𝐖 𝟒𝟎𝟎 𝐆𝐏𝐃 𝐑𝐞𝐯𝐞𝐫𝐬𝐞 𝐎𝐬𝐦𝐨𝐬𝐢𝐬 𝐒𝐲𝐬𝐭𝐞𝐦.
•𝐂𝐨𝐧𝐭𝐞𝐧𝐭𝐬 𝐨𝐟 𝐰𝐚𝐭𝐞𝐫 𝐟𝐢𝐥𝐭𝐞𝐫 𝐤𝐢𝐭: When it is time to replace all the filters in your Waterdrop Reverse Osmosis System, this three-pack filter kit fits your needs perfectly. CF filter lifespan is 6 months, CB filter lifespan is 1 year, and N2RO filter lifespan is 2 years.
•𝐄𝐚𝐬𝐲 𝐟𝐢𝐥𝐭𝐞𝐫 𝐫𝐞𝐩𝐥𝐚𝐜𝐞𝐦𝐞𝐧𝐭: A twist can replace the filter in three seconds. One-step filter replacement does not require you to shut off your water source, and it also does not need extra tools for replacement.
•𝐏𝐫𝐞𝐦𝐢𝐮𝐦 𝐦𝐚𝐭𝐞𝐫𝐢𝐚𝐥: The CF filter applies the superior natural coconut shell-activated carbon block with a smaller pore size, which largely absorbs residual chlorine odors and organic materials, improving water taste. The RO filter applies the DOW RO membrane technology with an accuracy of 0.0001μm.

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$149.99

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Waterdrop

Waterdrop WD-G2P600-RO Filter, Replacement for WD-G2P600-W Reverse Osmosis System, 2-year Lifetime, Reduce PFAS

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•𝐂𝐨𝐦𝐩𝐚𝐭𝐢𝐛𝐥𝐞 𝐦𝐨𝐝𝐞𝐥: Waterdrop WD-G2P600-W Reverse Osmosis System.
•𝐋𝐨𝐧𝐠 𝐬𝐞𝐫𝐯𝐢𝐜𝐞 𝐥𝐢𝐟𝐞: This G2P600-RO water filter provides you with 24 months or 3,300 gallons of filtered water, whichever comes first. This may vary depending on your filtered water consumption.
•𝐈𝐧𝐧𝐨𝐯𝐚𝐭𝐢𝐯𝐞 𝐜𝐨𝐦𝐩𝐨𝐬𝐢𝐭𝐞 𝐟𝐢𝐥𝐭𝐞𝐫: The G2P600-RO filter employs a 0.0001-micron high-precision reverse osmosis membrane, a sediment PP membrane, an activated carbon block, and a PET pleated membrane. This filter can intercept contaminants that traditional water filters cannot eliminate, such as TDS, atrazine, salt, nitrates, PFAS, fluoride, radium, radioactive substances and heavy metals, as well as further filter out impurities and improve the taste of water.
•𝐏𝐫𝐞𝐦𝐢𝐮𝐦 𝐦𝐚𝐭𝐞𝐫𝐢𝐚𝐥: With a larger filtration area, the reverse osmosis membrane undergoes rigorous testing to effectively reduce most contaminants. Made from Sri Lankan coconut shells, the activated carbon block improves the taste of water, ensuring that your drinking water is fresh and pure. Also, the G2 P600 MRO filter adds a PET pleated membrane with a smaller pore size to increase the adsorption area, effectively reducing contaminants in water.
•𝐄𝐚𝐬𝐲 𝐢𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧: You can replace the filter in 3 seconds with a single twist. No tools required.

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$99.99

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Waterdrop

Waterdrop WD-G3P600-RO Filter, NSF Certified, Replacement for WD-G3P600 Reverse Osmosis System, 2-year Lifetime

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•𝐂𝐨𝐦𝐩𝐚𝐭𝐢𝐛𝐥𝐞 𝐌𝐨𝐝𝐞𝐥: This filter for an under sink reverse osmosis system is adaptive to 𝐆𝟑𝐏𝟔𝟎𝟎 RO system with no worries about leakage.
•𝐓𝐫𝐮𝐬𝐭𝐞𝐝 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐜𝐚𝐭𝐢𝐨𝐧: This filter for the reverse osmosis system has been tested and certified by NSF/ANSI 58 for TDS reduction and NSF/ANSI 372 certified for lead-free material.
•𝐎𝐮𝐭𝐬𝐭𝐚𝐧𝐝𝐢𝐧𝐠 𝐅𝐢𝐥𝐭𝐫𝐚𝐭𝐢𝐨𝐧 𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞: Through reverse osmosis filtration, the filter for the RO system can effectively reduce TDS, chromium, pfas, fluoride, arsenic salt, iron, radium nitrate, calcium, chloride, radioactive substances and heavy metals like hexavalent chromium in your tap water according to testing by a third-party laboratory to improve your water taste.
•𝐄𝐚𝐬𝐲 𝐈𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧: It only takes a twist to replace the filter for the Waterdrop reverse osmosis system in three seconds with no tools required.
•𝐋𝐨𝐧𝐠 𝐒𝐞𝐫𝐯𝐢𝐜𝐞 𝐋𝐢𝐟𝐞: This filter for the tankless reverse osmosis system provides up to 24 months or 2,200 gallons of clean water, which may vary according to local water quality.
•Please note that it is 𝐧𝐨𝐭 recommended to apply this filter to WD-G3P800-W or WD-G3-W RO water filter system, otherwise, it may affect your use experience. Please confirm this before purchase.

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$109.99

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Waterdrop

Waterdrop WD-G3P800-N2RO Filter, Replacement for WD-G3P800-W Tankless Reverse Osmosis System, Reduce PFAS, 2-year Lifetime

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•【Perfect fit】 This RO replacement water filter is ONLY for the Waterdrop G3 P800 reverse osmosis water system.
•【Highly precise filtration】 The filtration precision of our RO membrane is up to 0.0001 micron. It effectively eliminates chlorine, heavy metals, organic, colloids, radium, radioactive substances and other harmful substances. It also reduces TDS in your drinking water, ensuring you don’t miss the pure essence of water.
•【Breakthrough water-saving technology】The reverse osmosis filter with enlarged membrane area offers a 3:1 drain ratio, i.e., 3 cups of pure water for every 1 cup of water that goes to the drain.
•【Ultra large 800 GPD capacity】The optimal and extensive filtration performance of this filter delivers 800 gallons crisp water every day. You will never have to worry about running out of water.
•【Replacement in a snap】 You can simply replace the filter with a twist and pull, in just 3 seconds. You don’t need bring in a plumber, plus it saves your time and energy.

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$139.99

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