# Waterdrop TSU 0.01 Micron Under-Sink Water Filter

Micron Filter: Waterdrop TSU is an under-sink ultrafiltration system for cold municipal tap water, combining carbon block filtration with a claimed 0.01μm membrane. It does not reduce TDS, so it is not intended for buyers seeking dissolved-solids or limescale removal.

- [Original product page](https://bargainpostbox.co.uk/product/waterdrop-tsu-ultrafiltration-under-sink-filter)
- [View offer](https://bargainpostbox.co.uk/visit/waterdrop-tsu-ultrafiltration-under-sink-filter)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: Waterdrop
- Model: waterdrop\_wd\_tsu\_w
- Category: Tools & Garden > Electrical & Plumbing
- Price: 152.99 GBP
- Previous price: 189.99 GBP
- Discount: 19%
- Price checked: 2026-11-12T16:00:59.055Z
- Rating: 4.5 / 5
- Reviews: 6293

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Uses carbon block and ultrafiltration, with a claimed 0.01μm membrane.
- Designed for cold municipal tap water and retains essential minerals according to the listing.
- The listing says it reduces chlorine, PFAS, taste, odour and heavy metals, but does not reduce TDS.
- A smart lifespan reminder uses four lights to indicate when filters need changing.
- The system is described as tankless and does not require a power source.

## Pros

- A dedicated under-sink setup keeps the filtration unit off the worktop, and customer feedback describes its compact appearance.
- Customers report improved taste and straightforward installation, which may suit households wanting filtered water at a separate faucet.
- A four-light reminder gives a visible indication for filter changes.

## Cons

- It does not reduce TDS and is not intended to remove limescale.
- The described setup requires cold water and is not suitable for well water or hot water.
- Customer feedback reports reduced water flow and pressure.

## Specifications

### Identity
- Brand: Waterdrop
- Model: waterdrop\_wd\_tsu\_w
### Filtration and operation
- Purification method: Carbon Block, Ultra Filtration
- Filtration rating: 0.01μm Ultra-Filtration
- Capacity: 2200 gallons
- Maximum flow rate: 1.05 Gallons Per Minute
- Power configuration: Manual \(Water Pressure\)
- Installation type: Under Sink
- Filter life cycle: 24 Months
- Temperature range: 35 Degrees Fahrenheit
- Upper temperature rating: 100 Degrees Fahrenheit
### Dimensions and materials
- Dimensions listed: 46.7L x 16.2W x 47.3H centimetres
- Weight listed: 14 Pounds
- Material listed: Carbon Fibre
### Additional listing details
- Spare part availability duration: 2 Years

## Before you buy

- The system is specified for cold municipal tap water only. Do not use with hot water or well water. Filter life varies by stage: the listing gives 24 months for the UF filter, 12 months for the CT filter and 6 months for the PP filter. Customer reports of reduced flow or pressure differ from the listing's claim of no pressure drop. The listing also gives a 1.05 Gallons Per Minute maximum flow rate, so expect actual results to depend on conditions.

## In the box

- Stainless steel faucet \(SS304\) (Included)
- 1/4 and 3/8-inch tubing (Included)
- 3/8-to-1/2-inch converter (Included)

## A good fit for

- Households on municipal tap water seeking under-sink filtration for taste and odour concerns.
- Buyers who want a separate faucet and a reminder light for filter changes.
- People who want filtration without a powered system and do not need TDS reduction.

## Less suited to

- Homes using well water or anyone needing treatment for hot water.
- Buyers seeking TDS or limescale reduction.
- Anyone who needs a guaranteed flow rate or pressure outcome.

## Customer feedback

Customer feedback highlights improved taste, perceived effectiveness, a neat under-sink fit and straightforward installation. Some buyers report that limescale remains, while others mention reduced flow or pressure. That distinction matters here: the listing says the system does not reduce TDS, and its stated maximum flow rate is not a guarantee of household pressure after installation.
- Positive themes: Customers describe improved taste and effective filtration.
- Positive themes: Feedback describes installation as straightforward and the unit as compact.
- Negative themes: Some customers say it does not remove limescale.
- Negative themes: Customers report reduced water flow and pressure.
- Mixed feedback: Water quality and size receive mixed feedback.

## Frequently asked questions

### Does the Waterdrop TSU reduce TDS?
No. The listing explicitly says it does not reduce TDS, so it is not a choice for dissolved-solids reduction.
### Can it be used with well water or hot water?
No. The listing specifies cold municipal tap water and says it is unsuitable for well water and hot water.
### How often do the filters need replacing?
The listing states 24 months for the UF filter, 12 months for the CT filter and 6 months for the PP filter. Actual replacement timing may depend on use and water conditions.
### Does the unit need electricity?
It is listed as operating manually through water pressure, with no power source required.

## Alternative options

- [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](https://bargainpostbox.co.uk/visit/waterdrop-wd-10ua-under-sink-water-filter)
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- [Waterdrop 15UB Under Sink Water Filter, 2-Year Lifespan, with Faucet \| Reduce PFAS, PFOA/PFOS, Lead, Chlorine, Bad Taste, 19000 Gallons High Capacity, NSF/ANSI 42 Certified, with Dedicated Faucet](https://bargainpostbox.co.uk/visit/waterdrop-tsu-ultrafiltration-under-sink-filter)
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## Add-ons

- [Waterdrop TSU 0.01 Micron Ultra Filtration Under Sink Water Filter System \| Reduces Odor, Not Lower TDS, Tankless System, Sma](https://bargainpostbox.co.uk/visit/waterdrop-10ua-uf-under-sink-ultra-filtration-system)

## Images

![Waterdrop TSU 0.01 Micron Under-Sink Water Filter — 1](https://bargainpostbox.co.uk/i/uHf5wMm16N_hu7ccqKRAi-2XXnm2BG0lojZO6YHD7swq56T6Zs600iaaZYPNyV-MmAdLdsvWI8ZbzziS9HDNj383u10Ni3JD-iLaOofUNkHug5JCCi4O.jpg)

![Waterdrop TSU 0.01 Micron Under-Sink Water Filter — 2](https://bargainpostbox.co.uk/i/mKD9ItulPDka8Bv_2WgSOYAACOk0SsQJ5BDAl_MmbhehCtQE6c3D-7137Tu9QGrgfYTm_1TepPDP1OHluNjOJ2GdZpKRtCy7EciC72YkohqVhS6OnqNF.jpg)

![Waterdrop TSU 0.01 Micron Under-Sink Water Filter — 3](https://bargainpostbox.co.uk/i/lQcEONeSqGFSh5GIkbjbDKJgvFv27_diOKxZEAcHPkdYmIqXBIjIs-84azYJARYWd9wIr-czbsnxWDNeryjkd_x-94mdSzc-YCP3tiUguCzBqOXCDfE5.jpg)

![Waterdrop TSU 0.01 Micron Under-Sink Water Filter — 4](https://bargainpostbox.co.uk/i/JLas_39NYGrR1xDN1rpzDGe4YTFvvmxttS8ba_GL6Ykz6gTtuwDIjS54xOa40P9kkFmb0J6Gcs0iHUK0Z7b3PaIOTERuhvk2Sd76tAOn7IEx1MU5YV80.jpg)

![Waterdrop TSU 0.01 Micron Under-Sink Water Filter — 5](https://bargainpostbox.co.uk/i/ThYnpj2gGljKve0DINYJfOr0m7xJz37n4yuV4W6fcPIRpeYaNQgvu9TZzhrSYIdD7FMzTzwcGn6EN-A4PkZUIOs9l5RQHU_5NknaMt6DhtCrZtfmzHup.jpg)

![Waterdrop TSU 0.01 Micron Under-Sink Water Filter — 6](https://bargainpostbox.co.uk/i/UNo5T4dA0F1pAtGHbjdW44g6VdrQJQJjP8WYO43FEE6tgn7infs0_wwcf_m9cu-4v5DTjQ2o6tfuf2zaGpOvcbUctGfWeDepO9FjNyy7jTlYH7p9mSGn.jpg)

![Waterdrop TSU 0.01 Micron Under-Sink Water Filter — 7](https://bargainpostbox.co.uk/i/-tpVNt5T-qyKffVbY1K6E44rW1WWlD319I0zBd52F-B_rNyFTBi8U6DGVqSi9h7QP0zDR7_XL0JH-tFmFA7XyZGH1Q3qjesqqc-MM-2d13gyVxaOZRxN.jpg)