--- product_id: 642213532 title: "Waterdrop TSB-ALK 8 Layer Slightly Alkaline Under Sink Water Filter System, Reduces PFAS, PFOA/PFOS, Fluoride, Chlorine, Bad Taste & Odor, with Dedicated Faucet, Under Sink Water Filtration System" brand: "waterdrop" price: "1227 zł" currency: PLN in_stock: true reviews_count: 13 category: "Waterdrop" url: https://www.desertcart.pl/products/642213532-waterdrop-tsb-alk-8-layer-slightly-alkaline-under-sink-water store_origin: PL region: Poland --- # 12-month filter lifespan 3-min twist & lock install 8-stage advanced filtration Waterdrop TSB-ALK 8 Layer Slightly Alkaline Under Sink Water Filter System, Reduces PFAS, PFOA/PFOS, Fluoride, Chlorine, Bad Taste & Odor, with Dedicated Faucet, Under Sink Water Filtration System **Brand:** waterdrop **Price:** 1227 zł **Availability:** ✅ In Stock ## Summary > 💧 Elevate your tap water game—taste the future of hydration today! ## Quick Answers - **What is this?** Waterdrop TSB-ALK 8 Layer Slightly Alkaline Under Sink Water Filter System, Reduces PFAS, PFOA/PFOS, Fluoride, Chlorine, Bad Taste & Odor, with Dedicated Faucet, Under Sink Water Filtration System by waterdrop - **How much does it cost?** 1227 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/642213532-waterdrop-tsb-alk-8-layer-slightly-alkaline-under-sink-water) ## Best For - waterdrop enthusiasts ## Why This Product - Trusted waterdrop brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless DIY Setup:** Install or replace filters in minutes—no plumber needed, no hassle. - • **Clog-Free, Smooth Flow:** 20X larger filtration area traps more impurities, ensuring consistent clean water. - • **Long-Lasting Performance:** Filters last up to 12 months, cutting down replacements and maintenance. - • **Mineral-Rich Alkaline Boost:** Enriches water with calcium, magnesium & potassium for better taste and bone health. - • **Pure & Powerful 8-Stage Filtration:** Reduces PFAS, fluoride, chlorine, heavy metals, and odors for crystal-clear water. ## Overview The Waterdrop TSB-ALK is a sleek under-sink water filtration system featuring an 8-layer advanced filtration process that reduces harmful contaminants like PFAS, fluoride, chlorine, and heavy metals while preserving beneficial minerals. Designed for municipal cold water, it enriches your water with alkaline minerals for improved taste and health benefits. With a user-friendly twist-and-lock installation and filters lasting up to 12 months, it offers a convenient, clog-resistant solution for clean, great-tasting water straight from your tap. ## Description Product description Waterdrop under sink water filter system WD-TSB-ALK WD-TSB-PF WD-TSB-UF WD-DST WD-TSA-UF Smart Breathing Light WD-10ALK Review: 10/10 would buy again - I’ve been really impressed with the Waterdrop TSB 8 Layer Under Sink system so far. Installation was straightforward, and the instructions were clear enough that I didn’t run into any issues. Once it was set up, the difference in water quality was noticeable right away cleaner taste, no odd smell, and overall just much better than straight tap. I also like how compact the unit is. It fits neatly under the sink without taking up too much space, which was a big plus for me. The build quality feels solid, and everything connects securely with no leaks. Overall, it does exactly what it’s supposed to do and does it well. Great value for the price and definitely a worthwhile upgrade for anyone looking to improve their drinking water at home. Review: Microplastic filtration and reliable. - I’ve been really happy with the Waterdrop WD-TSA-UF system (the one sold under ASIN B0D1R9RS3S) I bought it back in January 2025 — so it’s now been nearly a year — and it’s still running smoothly. The unit has been totally leak-free and dependable, with a strong flow rate for an under-sink ultrafiltration system. Installation was straightforward: the system fit nicely under my sink alongside a garbage disposal — no special modifications needed. I’ve used similar filters before, so the set-up felt familiar and easy. Since installing it, I’ve noticed the water tastes noticeably better than regular tap (I'ma municipal water supply) — clean and fresh. The specs say it filters out microplastics as well, which gives me added confidence in the quality. On top of that, I’ve been quite impressed with Waterdrop’s customer service. Becky handled a few questions for me quickly and with good detail. Overall — dependable performance, easy installation, solid water taste, and good support — I’d recommend this filter for anyone who wants a worry-free under-sink filtration system. Becky was consistently knowledgeable and thorough when answering technical questions—especially around materials, certifications, and filtration specifics. She also handled my support request quickly and followed through on every step. Overall, both the product and the support experience have exceeded expectations. I’d confidently recommend Waterdrop based on the quality of the system and the professionalism of their customer service. ## Features - [Important Note] This under sink water filter system does NOT reduce TDS. It is specifically designed for municipal tap water and can only be used with cold water sources. This water filter for sink faucet is not suitable for well water or hot water - [Replacing your filter? ] To replace the filter for your WD-TSB-ALK under-sink water filtration system, Please search for B0CM8MHWNT for the WD-10PP filter, B0CM8KV1M9 for the WD-10GC filter, B0D1R69QQS for the WD-10ALK filter. - [Fantastic Taste, Better Health] This alkaline under sink water filter enriches your tap water with beneficial minerals such as calcium, magnesium, sodium, and potassium, enhancing its taste. These added minerals not only make your water taste better but also support your physical health, improving bone strength and digestive health. Enjoy healthier, great-tasting water straight from your tap. Note: Do not reduce TDS. - [8-stage Advanced Filtration] This under sink water filtration system includes 3 filters for 8-stage deep filtration, including alkaline filtration, to reduce chlorine, taste and odor, fluorides, heavy metals, rust, sediment, sand and particles, tested by a third-party lab. Its KDF materials reduce heavy metals and harmful substances, ion exchange resin reduces fluorides, and the alkaline filter enriches your tap water with beneficial minerals and improves taste, offering pure, healthy water. - [Long Filter Lifespan] Enjoy pure water all year round. The 3 high-quality filters in this under sink water filter have impressive lifespans, lasting up to 12 months. This means fewer replacements and more convenience for you. Say goodbye to frequent filter changes and hello to long-lasting, clean water every day. Before going on vacation, please Put the filters in separate sealed plastic bags, and store the bags in your refrigerator (NOT the freezer) to keep it fresh in 30 days. - [Easy to Install] Installation is a breeze! With twist-and-lock design, you can set it up in 3 minutes and replace filters in just 3 seconds all by yourself without a plumber. Super easy-to-use water filter for sink faucet. - [No Clogging Issues] This under sink water filter features an upgraded filtration area that offers a 20X increase in dirt adhesion. This significant boost enhances filtration capability, effectively trapping more impurities and reducing the risk of clogging. Enjoy consistently cleaner water with less maintenance hassle, ensuring a smooth and worry-free experience for you and your family. - [Cannot filter well water or hot water]Only a cold-water source should be used to power the filter. This system is designed for Municipal Tap Water. If using well water as the source, please make sure the feed water has been through a pre-filtration system. For the solution with a pre-filtration system, please search for WD-PFK. - [TDS & WATER QUALITY] Heads up — TDS meters aren’t the be-all and end-all of water quality. Why? ‘Cause essential minerals like calcium, potassium, sodium, and magnesium are dissolved solids too. That means your TDS reading might not budge, and that’s actually a good thing! Our Waterdrop under-sink system keeps these beneficial minerals in your water while filtering out the nasty stuff you don’t want. Quick note: Our activated carbon is made from natural coconut shells. So if coconuts aren’t your thing, double-check before you get filtering! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0D1R92FPJ | | Best Sellers Rank | #11,212 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #24 in Under-Sink & Countertop Filtration | | Brand | Waterdrop | | Brand Name | Waterdrop | | Capacity | 8000 Gallons | | Container Type | Tube | | Customer Reviews | 4.4 out of 5 stars 1,346 Reviews | | EU Spare Part Availability Duration | 1 Years | | Filter Life Cycle | 12 Months | | Global Trade Identification Number | 06922350619616 | | Included Components | Under Sink Water Filter ·Inlet&Outlet hose ·3/8"–1/2" Convertor set ·Teflon tape | | Installation Type | Under Sink | | Item Dimensions L x W x H | 12.9"L x 4.3"W x 12.4"H | | Item Weight | 1.5 Pounds | | Manufacturer | Waterdrop | | Material | NSF/ANSI Approved Material Components | | Material Type | NSF/ANSI Approved Material Components | | Model Name | WD-TSB-ALK | | Model Number | WD-TSB-ALK | | Other Special Features of the Product | Alkaline undersink water filter add beneficial minerals, enhance taste, promote health, and strengthen bone strength. | | Part Number | WD-TSB-ALK | | Power Source | Adapter | | Product Dimensions | 12.9"L x 4.3"W x 12.4"H | | Product Shelf Life | 12 Months | | Purification Method | Reduce iṁpurities, retain beneficial minerals | | Smart Home Compatibility | Not Smart Home Compatible | | Supported Water TDS Level Maximum (PPM) | 300 | | Unit Count | 1.0 Count | | Warranty Description | No | ## Product Details - **Brand:** Waterdrop - **Capacity:** 8000 Gallons - **Included Components:** Under Sink Water Filter ·Inlet&Outlet hose ·3/8"–1/2" Convertor set ·Teflon tape - **Installation Type:** Under Sink - **Material:** NSF/ANSI Approved Material Components - **Package Information:** Tube - **Power Source:** Adapter - **Product Dimensions:** 12.9"L x 4.3"W x 12.4"H - **Purification Method:** Reduce iṁpurities, retain beneficial minerals ## Images ![Waterdrop TSB-ALK 8 Layer Slightly Alkaline Under Sink Water Filter System, Reduces PFAS, PFOA/PFOS, Fluoride, Chlorine, Bad Taste & Odor, with Dedicated Faucet, Under Sink Water Filtration System - Image 1](https://m.media-amazon.com/images/I/71fyN7CaHrL.jpg) ![Waterdrop TSB-ALK 8 Layer Slightly Alkaline Under Sink Water Filter System, Reduces PFAS, PFOA/PFOS, Fluoride, Chlorine, Bad Taste & Odor, with Dedicated Faucet, Under Sink Water Filtration System - Image 2](https://m.media-amazon.com/images/I/81myCTLl0HL.jpg) ![Waterdrop TSB-ALK 8 Layer Slightly Alkaline Under Sink Water Filter System, Reduces PFAS, PFOA/PFOS, Fluoride, Chlorine, Bad Taste & Odor, with Dedicated Faucet, Under Sink Water Filtration System - Image 3](https://m.media-amazon.com/images/I/81gsTwuoEzL.jpg) ![Waterdrop TSB-ALK 8 Layer Slightly Alkaline Under Sink Water Filter System, Reduces PFAS, PFOA/PFOS, Fluoride, Chlorine, Bad Taste & Odor, with Dedicated Faucet, Under Sink Water Filtration System - Image 4](https://m.media-amazon.com/images/I/81VR4ITIOXL.jpg) ![Waterdrop TSB-ALK 8 Layer Slightly Alkaline Under Sink Water Filter System, Reduces PFAS, PFOA/PFOS, Fluoride, Chlorine, Bad Taste & Odor, with Dedicated Faucet, Under Sink Water Filtration System - Image 5](https://m.media-amazon.com/images/I/817+7c1wi6L.jpg) ## Available Options This product comes in different **Set** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ 10/10 would buy again *by J***A on May 4, 2026* I’ve been really impressed with the Waterdrop TSB 8 Layer Under Sink system so far. Installation was straightforward, and the instructions were clear enough that I didn’t run into any issues. Once it was set up, the difference in water quality was noticeable right away cleaner taste, no odd smell, and overall just much better than straight tap. I also like how compact the unit is. It fits neatly under the sink without taking up too much space, which was a big plus for me. The build quality feels solid, and everything connects securely with no leaks. Overall, it does exactly what it’s supposed to do and does it well. Great value for the price and definitely a worthwhile upgrade for anyone looking to improve their drinking water at home. ### ⭐⭐⭐⭐⭐ Microplastic filtration and reliable. *by D***7 on December 7, 2025* I’ve been really happy with the Waterdrop WD-TSA-UF system (the one sold under ASIN B0D1R9RS3S) I bought it back in January 2025 — so it’s now been nearly a year — and it’s still running smoothly. The unit has been totally leak-free and dependable, with a strong flow rate for an under-sink ultrafiltration system. Installation was straightforward: the system fit nicely under my sink alongside a garbage disposal — no special modifications needed. I’ve used similar filters before, so the set-up felt familiar and easy. Since installing it, I’ve noticed the water tastes noticeably better than regular tap (I'ma municipal water supply) — clean and fresh. The specs say it filters out microplastics as well, which gives me added confidence in the quality. On top of that, I’ve been quite impressed with Waterdrop’s customer service. Becky handled a few questions for me quickly and with good detail. Overall — dependable performance, easy installation, solid water taste, and good support — I’d recommend this filter for anyone who wants a worry-free under-sink filtration system. Becky was consistently knowledgeable and thorough when answering technical questions—especially around materials, certifications, and filtration specifics. She also handled my support request quickly and followed through on every step. Overall, both the product and the support experience have exceeded expectations. I’d confidently recommend Waterdrop based on the quality of the system and the professionalism of their customer service. ### ⭐⭐⭐⭐⭐ Works well and is easy to install *by K***Y on May 6, 2026* Really good for the price! I opted for the one without the extra spigot. If you have all the fixtures it shows and under the sink is accessible and you’re able to follow EASY instructions it should be easy. After 5 minutes good tasting water. ## Frequently Bought Together - Waterdrop TSB-ALK 8 Layer High Capacity Slightly Alkaline Under Sink Water Filter, Reduces PFAS, PFOA/PFOS, Fluoride, Chlorine, Bad Taste & Odor, with Dedicated Faucet, Under Sink Water Filter - Waterdrop TSA 3-Stage Replacement Water Filter, Replacement for Waterdrop TSA & TSB & TSB-CM 3-stage Under Sink Water Filtration System, 2PP+GC - Waterdrop WD-10ALK Under Sink Water Filter, Replacement for Waterdrop TSB-ALK 8 Layer High Capacity Alkaline Under Sink Water Filtration System --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/642213532-waterdrop-tsb-alk-8-layer-slightly-alkaline-under-sink-water](https://www.desertcart.pl/products/642213532-waterdrop-tsb-alk-8-layer-slightly-alkaline-under-sink-water) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-14*