Waterdrop WD Gravity Water Filter Review: Filters 99% of Chlorine, Fluoride, and Heavy Metals

What the WD-TK-A-FS Is, and Who For

A family of 4 service rating tells you this model is aimed at household use, not just occasional pouring for one person.

Waterdrop WD-TK-A-FS matches that scenario with a 2.25-gallon capacity and coconut activated carbon filtration media, so the setup is built around staged water for daily use. Its leak-proof metallic spigot and gravity-fed operation also point to a fixed countertop role rather than a portable one.

We screened 28 Gravity Water Filters and selected 15 for full review. Full reviews go to the most-rated products that pass screening, at most 2 per brand. This one has 70 buyer ratings, the 16th most of the 28 screened, so it fits the review list for that reason. This review is for you if you want a gravity water filter for a household of four and need the storage figure stated plainly before you decide.

The Short Answer on the WD-TK-A-FS

Best for: you want a 2.25-gallon gravity filter for a small counter and a family of four.

Choose the WD-TK-A-FS if you want a stainless steel countertop gravity filter with a stand and four filters for around $199.99.

• Pro: The 2.25-gallon capacity gives you enough stored water for a small apartment counter without taking over the sink area.
• Pro: Its 12.6-inch height keeps the unit fairly compact for countertop placement.
• Pro: The listing states NSF/ANSI 42, IAPMO R&T against NSF/ANSI 372, and up to 99% reduction claims for chlorine, fluoride, and heavy metals.
• Con: The 2.25-gallon size is short of the larger batch sizes that help when you want fewer refills for heavier daily use.
• Con: It is rated 4.0 from 70 buyer ratings, which gives you less buyer feedback than higher-volume listings.

Don’t buy this if: you need enough filtered water ready for a full day of home drinking and cooking, since 2.25 gallons is short of that need.

Price assessment: Around $199.99 is a fair price for the capacity, stainless steel build, stand, and certification set.

If you need a different capacity, see the full CO-Z Gravity Filter review.

The Numbers on the Spec Sheet

It measures how tall the filter is from bottom to top.

Before You Buy: Gravity Water Filter Checklist

The first thing to check is whether 2.25 gallons matches your household use, because this Gravity Water Filter serves a family of 4 and will need refills sooner than larger countertop systems.

• ☐ Confirm the capacity you need — 2.25 gallons — or you may end up refilling it during the same day instead of treating it as a set-and-forget countertop filter.
• ☐ Check the height against your counter clearance — 12.6 inches — or you may have to return it if it sits awkwardly under cabinets.
• ☐ Verify the contaminant claims you care about — up to 99% of chlorine, fluoride, and heavy metals, with NSF/ANSI 42 and IAPMO R&T against NSF/ANSI 372 — or you may buy a filter that does not address the water concerns you had in mind.
• ☐ Confirm you have room for the included stand and stainless steel body — stand included, 304 stainless steel — or you may need to rearrange the counter or live with a cramped setup.
• ☐ Check that the 1-minute faucet flush fits your routine — 1 minute flush connected to a faucet — or you may find the setup inconvenient before first use.
• ☐ Budget for the filter life you want — 1,000 gallons for the white fluoride filters and 6,000 gallons for the black carbon filters — or you may replace parts sooner than expected.

Do not buy this if you need a larger daily reserve than 2.25 gallons or if 12.6 inches is too tall for your counter space.

How This Gravity Water Filter Performs in Practical Terms

How This Gravity Water Filter Reduces Contaminants

Waterdrop WD-TK-A-FS gives you a fluoride-focused gravity water filter with coconut activated carbon and an NSF/ANSI 42 listing in Model ECF-7066. Its contaminant claim is up to 99% of chlorine, fluoride, and heavy metals, so this is the section that matters if fluoride reduction is your main reason for buying. The IAPMO R&T certification against NSF/ANSI 372 also ties the housing materials to lead-free requirements, which matters when you want the water path and the materials standard covered in the same unit.

For family use, the fluoride claim is the key one to read closely. WD-TK-A-FS states 1,000 gallons for the white filters tied to fluoride reduction, so the fluoride side is not a vague promise with no stated limit. If you need a gravity filter for daily drinking water and cooking, that figure gives you a defined replacement point instead of a guess, while the chlorine and heavy-metal claim widens its use beyond one narrow task.

How Filter Lifespan Affects Replacement Planning

WD-TK-A-FS states two different service lives: 1,000 gallons for the white filters and 6,000 gallons for the black carbon filters. That split means the fluoride set will ask for earlier replacement than the carbon set, so you should plan around the shorter figure if fluoride reduction is the reason you are buying. The 6,000-gallon carbon life is the longer-running side of the system and suits households that want fewer changes for general chlorine and taste reduction.

The lifespan numbers also tell you which workload this gravity filter suits better. If you want one unit for steady household use, the longer carbon life supports that role, but the fluoride side still sets the maintenance pace. A family that drinks filtered water every day should treat the 1,000-gallon figure as the practical limit for the fluoride function, because that is the part tied to the contaminant claim many buyers care about most.

What the Countertop Build Means for Kitchen Space

WD-TK-A-FS is a countertop gravity filter with a 2.25-gallon capacity and a height of 12.6 inches. That size is enough for a small kitchen counter without demanding a large footprint, and it gives you a batch size that suits regular refilling without turning the unit into a tall tower. The included stand and metallic spigot also matter here, because the listing states both as part of the package.

The 12.6-inch height is the number to watch if your counter sits under cabinets or if you want the spigot area kept accessible. The 2.25-gallon tank size supports a small household better than a tiny emergency jug, but it is still a modest batch for heavy daily drinking. If you want a gravity water filter that stays compact while serving a family of four, this build is aimed at that middle ground rather than at large-capacity storage.

Common Buyer Jobs Checked Against the WD-TK-A-FS’s Specs

The WD-TK-A-FS against the jobs buyers ask about, worked out from its listed capacity and a typical need for each job.

Where the WD-TK-A-FS Sits Among the Alternatives

WD-TK-A-FS has the strongest capacity story in this comparison set at 2.25 gallons, and it does so at around $199.99. That gives you the same stated water volume as the other 2.25-gallon rivals, without asking you to move up to a larger footprint.

• Against the FACHIOO unit at $199.98, WD-TK-A-FS is priced almost the same, so price does not separate them.
• Against the other FACHIOO listing, WD-TK-A-FS adds a stainless steel body and four filters, while that rival’s listing highlights 90% fluoride reduction and NSF/ANSI 42 certification instead.
• Against Ginkin, the deciding difference is the rating count: WD-TK-A-FS has 70 buyer ratings, while Ginkin shows 6. That is like judging a restaurant from a much larger stack of receipts, not just a handful.
• Against All Glass, WD-TK-A-FS is the taller unit at 12.6 inches, while the rival listing emphasizes an all-glass lid and corrosion resistance instead of a height figure.
• Against Purewell, WD-TK-A-FS carries the stronger certification package for this category, with IAPMO R&T against NSF/ANSI 372 and NSF/ANSI 42 in Model ECF-7066.

Choose Purewell instead if your priority is the lower price at around $189 and you do not need the stainless steel build, stand, or the 2.25-gallon format here.

What the Price Buys in This Gravity Water Filter

At around $199.99, WD-TK-A-FS sits near the high end of the similar Gravity Water Filter products we compared it against, which ran from $189 to $199.99. You are paying for a 2.25-gallon stainless steel countertop unit with four filters, a stand, and NSF/ANSI 42 and 372 coverage. The trade-off is capacity, not filtration claims: the fluoride filters are rated for 1,000 gallons, while the carbon filters are rated for 6,000 gallons. That split matters. Replacement cost will not be even.

This price makes sense if you want a 2.25-gallon gravity filter and you value the longer carbon filter life more than the fluoride filter cycle. The WD-TK-A-FS is the right buy when you are comfortable replacing the white filters after 1,000 gallons and the black filters after 6,000 gallons, and you want the included stand rather than buying one separately. If you want lower upfront cost, the similar options we compared include models at $189. If you want to reduce refill frequency, this price does not buy the 3.25-gallon capacity some households need.

What It Takes to Run the WD-TK-A-FS

Getting the WD-TK-A-FS ready to use

The WD-TK-A-FS needs a faucet connection before it can do anything useful.

1. Unpack the stainless steel housing, stand, leak-proof metallic spigot, and accessories from the box.
2. Place the 12.6-inch unit on a countertop with enough clearance for the lower chamber and spigot.
3. Install the four filters in the positions shown for the fluoride system, including the fluoride filter element if your setup uses one.
4. Flush the unit for 1 minute while connected to a faucet before the first fill.
5. Fill the 2.25-gallon chambers and let gravity-fed flow start the first normal use.

Warranty and support checks for this countertop gravity filter

Warranty cover differs by seller and country.

• Confirm the return window before it closes, because the four-filter setup and specialized fluoride stage are not user-serviceable in the data here.
• Confirm whether replacement filter element and fluoride filter element coverage is separate, because those parts carry the filtration work.
• Confirm whether the spigot gasket is covered, because the leak-proof outlet depends on that seal.
• Confirm whether the stand is covered, because the 12.6-inch countertop setup depends on it for placement.

The first day it arrives, inspect the spigot, gasket, stand, and all four filters while a return is still possible.

For a small apartment kitchen, the 2.25-gallon capacity is the kind of size that leaves room for the sink area.

Questions Buyers Ask About This Gravity Water Filter

Does the Waterdrop WD-TK-A-FS need any special faucet setup?

Yes, WD-TK-A-FS needs a faucet connection and a 1-minute flush before use. The included leak-proof metallic spigot and necessary accessories cover the countertop setup, but the faucet connection is a real requirement, not a no-setup fill-and-pour start. If your sink area cannot support that connection, the wrong purchase means a return and a second setup.

What does the 2.25-gallon capacity mean for daily use?

The 2.25-gallon capacity gives you a modest batch size for a countertop gravity filter. That amount suits smaller households or lighter daily demand better than heavy all-day use. For a family dinner or a full day of drinking and cooking, the stored volume is the limiting factor.

Is the WD-TK-A-FS tall enough for a small kitchen counter?

WD-TK-A-FS stands 12.6 inches tall, so it stays relatively compact for a gravity water filter. That height helps on tighter counters where vertical space matters more than tank size. If you are planning around cabinet clearance, measure 12.6 inches against the space you have.

What kind of filtration claims does the Waterdrop WD-TK-A-FS make?

Waterdrop lists NSF/ANSI 42 in Model ECF-7066 and IAPMO R&T against NSF/ANSI 372 for lead-free materials. The listing also says up to 99% removal of chlorine, fluoride, and heavy metals. The health-related claim depends on the stated certifications, while the contaminant list tells you what the system is meant to address.

Is the WD-TK-A-FS worth the price for a family of 4?

That depends on whether a 2.25-gallon countertop system matches your daily water demand. The WD-TK-A-FS is priced around $199.99 and is listed for a family of 4, but the capacity is still the key limiter. If your household drinks heavily, the refill cadence matters more than the family-size label.

Is the WD-TK-A-FS Right for You?

Who the WD-TK-A-FS suits and the jobs it is the wrong choice for, listed below with the reason for each.

For larger households, explore our top-rated gravity filter options for families.

Where to Buy This Countertop Gravity Filter

Gravity water filters are sold by the retailers below – we do not track which of them has the WD-TK-A-FS in stock, so check availability and the current price with the retailer before making a trip.

• Walmart (online and physical stores) — in-store returns
• Target (online and physical stores) — easy local pickup and returns
• Home Depot (online and physical stores) — in-store returns and broad household category coverage
• REI (online and physical stores) — specialist staff and trusted outdoor-water-filter selection
• Bass Pro Shops (online and physical stores) — specialist staff for camping and emergency water filtration
• The Berkey Store (online only) — specialist retailer for gravity water filters
• Amazon (online only) — breadth of range

Final Verdict on the WD-TK-A-FS

You need a 2.25-gallon countertop gravity filter for a small household, and you are fine with a 12.6-inch unit that keeps the footprint modest. The WD-TK-A-FS fits that use case, and it is around $199.99.

Its 2.25-gallon capacity is the key number here. That size suits a small kitchen or apartment counter better than a larger batch tank, and it will not keep up with heavy all-day drinking for a bigger household.

Skip it if: you need a larger reserve for a full day of home drinking and cooking, or you want a filter that can cover a weekend outage without frequent refills.