Waterdrop WD-TSA 8-Layer Under-Sink Water Filter

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Product guide

Waterdrop WD-TSA 8-Layer Under-Sink Water Filter

Waterdrop WD-TSA is an eight-layer under-sink filter system with three filters and a non-electric configuration. Its listing describes reductions for several unwanted substances while retaining minerals, but it does not reduce total dissolved solids (TDS).

At a glance

The listing describes three filters providing eight-stage filtration and claims reductions for substances including residual chlorine, lead, PFAS and PFOA/PFOS.
The system is listed as non-electric and intended for under-sink installation.
The listing says it retains minerals and does not reduce TDS.

Price

€110.49Save 15%

Reference price: ~~€129.99~~

Price checked: 12 Nov 2026

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Often bought together

Waterdrop 10UA Under Sink Water Filter System, 11000 Gallons Capacity | Reduce PFOA/PFOS, Reduce Lead, Chlorine, Bad Taste, Odor, NSF/ANSI 42 Certified, Direct Connection to your Faucet

€59.49

Pros and cons

Pros

Three filters are listed, with the manufacturer describing separate service lives of 6 months, 8–12 months and 12–18 months.
The listed kit includes inlet and outlet hoses, a 3/8"–1/2" converter set and Teflon tape.
The manufacturer describes push-to-connect fittings and twist-and-lock filter replacement.

Cons

TDS is not reduced, so this system does not address dissolved solids as a filtration target.

Technical specifications

13 specifications

Identity
Brand	Waterdrop
Model	WD-TSA

Installation and power
Installation type	Under Sink
Power configuration	Non electric
Container type	Tube

Filtration and capacity
Purification method	Reduce iṁpurities, retain beneficial minerals
Capacity	8000 Gallons
Maximum flow rate	1 Gallons Per Minute
Maximum supported water TDS level	500
Filter life cycle	18 Months
Upper temperature rating	100 Degrees Fahrenheit

Materials and dimensions
Material listed	NSF/ANSI Approved Material Components
Dimensions (L × W × H)	31.5L x 10.8W x 32.8H centimetres

What to know before buying

Listing details to confirm

The listing details are inconsistent: one feature describes an eight-stage system with three filters, while the product description calls it a three-stage system. The title claims NSF/ANSI 42 certification, but the detailed claims specify IAPMO certification for the CT filter and NSF/ANSI-approved material components, so the exact certification scope is unconfirmed. The 18-month cycle listing also differs from the stated individual filter lives of 6 months, 8–12 months and 12–18 months. Confirm the claims and replacement schedule for the selected listing before buying. The manufacturer gives a maximum supported TDS level of 500 and an upper temperature rating of 100 Degrees Fahrenheit.

What’s in the box

Included

Under-sink water filter
Inlet and outlet hoses
3/8"–1/2" converter set
Teflon tape

Who is it for?

A good fit for

Households seeking an under-sink, non-electric filter with a listed multi-filter setup and included connection accessories.
Buyers looking for a system whose listing claims reductions in chlorine, lead and other named contaminants, while retaining minerals.

Less suited to

Anyone who needs a filter that reduces TDS.
Buyers who require a clearly established certification scope or an unambiguous filter replacement schedule.

Waterdrop WD-TSA 8-Layer Under-Sink Water Filter · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 2,364 ratings

5 stars75%75%
4 stars12%12%
3 stars5%5%
2 stars2%2%
1 star6%6%

Customer feedback highlights perceived improvements in water taste and quality, positive comments on product quality and included installation accessories, and reports of reduced water pressure. For buyers, the pressure concern matters because the listing gives a maximum flow rate of 1 Gallons Per Minute, but that specification does not establish the pressure a particular installation will deliver.

Positive themes

Customers report improved water taste and water quality.
Customers praise product quality and the included installation accessories.

Negative themes

Several customers report a drop in water pressure.

Mixed feedback

Feedback includes both positive comments about water quality and reports of reduced water pressure.

Frequently asked questions

Does the Waterdrop WD-TSA reduce TDS?

No. The listing explicitly says it does not reduce total dissolved solids, although it describes retaining beneficial minerals.

How often do the filters need replacement?

The listing gives individual filter lifespans of 6 months, 8–12 months and 12–18 months. It also lists an 18-month filter life cycle, so confirm the schedule for the selected system.

What is included in the listed kit?

The manufacturer’s included-components list names the under-sink filter, inlet and outlet hoses, a 3/8"–1/2" converter set and Teflon tape.

What should I know about the certification claim?

The title claims NSF/ANSI 42 certification, while the details separately mention NSF/ANSI-approved material components and IAPMO certification for the CT filter. The exact scope is not clear from the listing.