# Waterdrop TSB 8-Layer Under-Sink Water Filter with Dedicated Faucet

Layer: Waterdrop TSB is an under-sink filter system with a dedicated faucet, intended for cold municipal tap water. Its listing describes three filters and eight-stage filtration while also calling the system a three-stage model. It retains minerals and does not reduce TDS, so it is not a choice for buyers seeking lower TDS readings.

- [Original product page](https://best-deals.pro/product/waterdrop-tsb-8-layer-under-sink-water-filter)
- [View offer](https://best-deals.pro/visit/waterdrop-tsb-8-layer-under-sink-water-filter)
- Market: US
- Language: en-US
- Currency: USD
- Brand: Waterdrop
- Model: WD-TSB-10-NC
- Category: Home & Kitchen > Kitchen Appliances > Water Purifiers
- Price: 105.25 USD
- Previous price: 143.99 USD
- Discount: 27%
- Price checked: 2026-11-14T07:05:25.436Z
- Rating: 4.4 / 5
- Reviews: 3636

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

- Designed for cold municipal tap water, with a separate faucet for filtered water.
- The listing describes three filters, eight-stage deep filtration and reduction claims for PFAS, PFOA/PFOS, chlorine and fluoride.
- Claims include retaining beneficial minerals rather than reducing TDS.
- Push-to-connect fittings and twist-and-lock filter replacements are presented as DIY-friendly features.

## Pros

- Dedicated faucet keeps filtered drinking water separate from the original tap.
- The claimed 8,000-gallon capacity and filter life of up to 18 months may reduce replacement frequency, subject to use and individual filter schedules.
- Customers report easy installation and improved taste and water quality, though experiences with flow and leaks vary.

## Cons

- Not suitable for hot water and not intended for untreated well water.
- Does not reduce TDS, which may not suit buyers seeking dissolved-solids reduction.

## Specifications

### Identity
- Brand: Waterdrop
- Model: WD-TSB-10-NC
### Filtration and use
- Installation type: Under Sink
- Purification method: Activated Carbon
- Filter capacity: 8000 gallons
- Filter life cycle: 18 months
- Power configuration: Mechanical Water Pressure
- Water source and temperature: 35 °F
- Maximum flow rate: 1.5 gpm
- Operating pressure range: 400 psi
- Upper temperature rating: 100 °F
- Maximum supported TDS level: 700
### Dimensions and materials
- Dimensions listed: 12.9"L x 4.3"W x 12.4"H
- Material listed: NSF/ANSI Approved Components

## Before you buy

- Listing details are inconsistent: it calls the system three-stage in one place and describes eight-stage deep filtration elsewhere. It lists a maximum flow rate of 1.5 gpm, while feature text gives 1.05 GPM for the system and separately says the faucet maximum is 1.45 gpm. The three filters have different stated lifespans of 6 months, 8–12 months and 12–18 months, so the general 18-month figure is not an interval for every filter. The operating-pressure entry is given as 400 psi without a range, and the product model is WD-TSB-10-NC while another model-number field says WD-TSB-10. Confirm the selected configuration and applicable specifications before purchase.

## In the box

- System ×1 (Included)
- Faucet ×1 (Included)
- 3/8"–1/2" converter set ×1 (Included)
- Quick-connect fitting (Included)
- Hose ×2 (Included)

## A good fit for

- Households with cold municipal tap water that want a dedicated filtered-water faucet.
- Buyers who want a filter system that retains minerals and do not require TDS reduction.
- DIY installers seeking push-to-connect fittings and twist-and-lock replacement filters.

## Less suited to

- People who need reverse-osmosis-style TDS reduction.
- Homes intending to use hot water or untreated well water with this system.

## Customer feedback

Customer feedback highlights easy installation, improved water taste and perceived water-quality improvement. Reports on pressure and flow are mixed, as are value perceptions, and customers describe both leak-free use and leakage concerns. These experiences matter for an under-sink system where household flow and connection setup affect day-to-day use. They do not establish a specific cause or guarantee the same results. Aggregate ratings are generally favorable but include a meaningful one-star share, so feedback is not uniformly positive.
- Positive themes: Customers report easy installation.
- Positive themes: Customers praise water taste and perceived water quality.
- Mixed feedback: Reports of water pressure and flow vary.
- Mixed feedback: Customers differ on whether the system is worth its price.
- Mixed feedback: Some customers report leaks while others report no leakage.

## Frequently asked questions

### Does this filter reduce TDS?
No. The listing says it retains beneficial minerals and does not reduce TDS.
### What water source is it intended for?
The listing describes cold municipal tap water. It says the system is not suitable for hot water or well water unless the well-water feed has been pre-filtered.
### How many filtration stages does it have?
The listing is inconsistent. It calls the system three-stage in one feature and also claims eight-stage deep filtration. Check the selected listing for the applicable configuration.
### How often do the filters need replacement?
The listing gives different lifespans for the three filters: 6 months, 8–12 months and 12–18 months. It also gives a general 18-month filter-life claim, which does not apply uniformly to every filter.

## Alternative options

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- [Frizzlife Under Sink Water Filter System, NSF/ANSI 53&42&372 Certified, 8 Layer 0.5 Micron Water Filtration Reduces PFAS, PFOA/PFOS, Chloramine, Lead, Chlorine, with Brushed Nickel Faucet, SP99 New](https://best-deals.pro/visit/frizzlife-sp99-new-under-sink-water-filter)
- [iSpring RCC7-BN NSF Certified, High Capacity Under Sink 5-Stage Reverse Osmosis Water Filter, RO Drinking System, 75 GPD Brushed Nickel Faucet, Patented Top-Mounted Faucet Design for Easy Installation](https://best-deals.pro/visit/ispring-rcc7-bn-5-stage-under-sink-ro-system)
- [Waterdrop WD-TSA-UF 0.01 μm Ultra Filtration Under Sink Water Filter System \| 9 Stage Under Sink Water Filtration System, Reduces Chlorine, Taste and Odor, Fluoride, Connects Directly to Your Faucet](https://best-deals.pro/visit/waterdrop-wd-tsa-uf-ultrafiltration-under-sink-filter)
- [iSpring RO600ORB Tankless Reverse Osmosis System Under Sink, 600 GPD Fast Flow RO System, 2.5:1 Pure to Drain Ratio RO Water Filter System, Oil Rubbed Black Faucet, White](https://best-deals.pro/visit/ispring-ro600orb-tankless-under-sink-reverse-osmosis-system)
- [VIOMI V6 PRO 600GPD Under-Sink Reverse Osmosis Water Filtration System \| 9-Stage RO Filter, Tankless, NSF/ANSI 42, 53, 58, & 372 Certified, 3:1 Pure-to-Drain, Reduces TDS/PFAS, Smart LED Faucet, APP](https://best-deals.pro/visit/viomi-vortex-6-pro-tankless-under-sink-ro-system)
- [iSpring US31KF-NC 3-Stage Chloramine Removal Under-Sink Water Filter System \| Reduces VOCs, Cloudiness, Bad Odor, NSF/ANSI Compliant, Direct Connect to Kitchen Faucet, 10-Year Reusable Housings, 10K-Gal](https://best-deals.pro/visit/ispring-us31kf-nc-under-sink-water-filter)
- [Waterdrop TST-UF 0.01μm Ultra-Filtration Under Sink Water Filter System \| Removes 99% of Substances, Chlorine, Bad Taste & Odor, No Drill Required, Stainless Steel Under Sink Water Filtration System](https://best-deals.pro/visit/waterdrop-tsb-8-layer-under-sink-water-filter)
- [Waterdrop TSB-10-CM Under Sink Water Filter System, Reduce Chloramine \| For CA, FL and Washington, D.C., Under Sink Water Filtration System, with Dedicated Faucet, Water Filter for Sink Faucet](https://best-deals.pro/visit/waterdrop-tsb-8-layer-under-sink-water-filter)
- [Waterdrop 10UB Under Sink Water Filter System with Dedicated Faucet \| Reduces PFOA/PFOS, Lead, Chlorine, Bad Taste & Odor, Under Sink Water Filter, NSF/ANSI 42 Certified, 1 Year](https://best-deals.pro/visit/waterdrop-tsb-8-layer-under-sink-water-filter)
- [Waterdrop G2P600 Under-Sink RO System, 600 GPD Tankless Water Filtration \| 7 Stage RO Water Filtration, NSF/ANSI 372 Certified, 2:1 Pure to Drain, TDS Reduction, Under-Sink Reverse Osmosis System](https://best-deals.pro/visit/waterdrop-tsb-8-layer-under-sink-water-filter)
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## Add-ons

- [Waterdrop 2PPGCCT Replacement Filter for TSA & TSB, 1-Year Replacement Pack \| Replacement for Waterdrop TSA & TSB 3-Stage Under Sink Water Filter System, 4-Pack \(2 x 10PP, 1 x 10GC, 1 x 10CT\)](https://best-deals.pro/visit/waterdrop-tsb-8-layer-under-sink-water-filter)

## Images

![Waterdrop TSB 8-Layer Under-Sink Water Filter with Dedicated Faucet — 1](https://best-deals.pro/i/rsxFzizQkRlF5vRcUCAZHBL9CvsPGmeXOpqazrO7EXn5VumSwivcwvdL6IftYdiE5k6N9VWOA09q1sgEowCjcchHqEqPSoPSkGV81J95Rf6nzc1kF2vE.jpg)

![Waterdrop TSB 8-Layer Under-Sink Water Filter with Dedicated Faucet — 2](https://best-deals.pro/i/wejBU9RUxHPYFC6xmDPB7_CSI8LasLXa3hTTzM6i9vIMDYehZRNgl6HG5cqwMhvorb_l7Lj-mMtcsbchsCbWG6dK21gB5xXvo3RLQaseezXP86-cy8SJ.jpg)

![Waterdrop TSB 8-Layer Under-Sink Water Filter with Dedicated Faucet — 3](https://best-deals.pro/i/ZBngzfVoy2AhqZua4-0j6iQgJBysGjpqixPWIevXoVZT9QK_RIkbp3mT5xLs_1qZsUBIw1CtQ_0kCQssZ77BFO4jntTr789QxjRsFo9Kv9ZKBFyq7ToP.jpg)

![Waterdrop TSB 8-Layer Under-Sink Water Filter with Dedicated Faucet — 4](https://best-deals.pro/i/FIDhBioKTSuLvVECy6bh71Q2lq1DTkk151VAVaLrtRTJdeRRLpGgwkUlWAoVAgMOLwWjag7I342igG1WAvzpLcvJ4Z-HXJEpDCg4VN4TY8Tpe6hUWSZ0.jpg)

![Waterdrop TSB 8-Layer Under-Sink Water Filter with Dedicated Faucet — 5](https://best-deals.pro/i/9xGUCnG_y9cOC8foNEMOtKL2zMjUtO3fc0fCMQi7e6asxHkhiI5uFSA38J4e4-k9rDpZyL8OsC-cRlD3L0I713r1bgJdWM_N8MVNFAZ6E8sYu92zEAwo.jpg)

![Waterdrop TSB 8-Layer Under-Sink Water Filter with Dedicated Faucet — 6](https://best-deals.pro/i/bA6ul7seELS3vYvjxzUgdg615dulOOPtEKSAS_ULHnL4f-gXFL3I7UHQZXYt1pEY1hcwFiMKbH89mhjTZN51PoFkVVh-S0S__hr4VkbbFeW3KVLC2BwP.jpg)

![Waterdrop TSB 8-Layer Under-Sink Water Filter with Dedicated Faucet — 7](https://best-deals.pro/i/HEDS21u4YBITckL3jl_bz8LPsykRJML2WyuK-yt0HfW1x67kGEpD0UbVKh2tJaGp9jZY0Xqx1qK0WAMbTFER0lXIUyOGssYJYS3paM3bNcrob_R7bIXz.jpg)