Under Sink Single Stage Water Filter Under Sink Single Stage Water Filter
Under Sink Single Stage Water Filter
Under Sink Single Stage Water Filter
Under Sink Single Stage Water Filter
Under Sink Single Stage Water Filter
Under Sink Single Stage Water Filter
Under Sink Single Stage Water Filter

Under Sink Single Stage Water Filter

Regular price
$69.99 $13.99
Sale price $69.99 Regular price
with dedicated faucet
without dedicated faucet
Buy now

Guaranteed Safe Checkout

  • Key Feature
    • Efficient filtration: Our carefully selected premium activated carbon block and PP cotton effectively reduce chlorine, odor, and large particles in your water supply.
    • Ultra-high capacity: The under counter single stage water filter adopts abundant filtration materials and an enlarged filtration area, which translates to longer service life of up to 8,000 gallons.
    • Effortless installation and replacement: The under sink water filtration system is easy to install and compatible with both 3/8" and 1/2" water piping. The installation and replacement can be completed in seconds even without any plumbing skill or service.
    • Safe and eco-friendly materials: This Waterdrop under cabinet water filter contains no harmful heavy metals, such as lead, mercury, cadmium, or others.
    • Fast water flow: You can connect the filter directly to your original faucet at home or go for the plan B, which comes with a stainless-steel finish faucet. Either way, you get a smooth, fast, and stable water flow.
Free Shipping ×
Shipping policy

Shipping rates and delivery estimates

Shipping Method

Estimated Delivery Time


Economy Shipping

4-10 Business Days


Standard Shipping

3-6 Business Days

$5.99(Free on order over $200)

Express Shipping

2-5 Business Days


* Shipping charges for your order will be calculated and displayed at checkout.

* The Delivery Time is calculated based on the shipping date, not the order date. The actual shipping date can be delayed due to invalid shipping address, weekends/holidays, etc.

Handling Time:

We need 24h to 48h to prepare your order, most of the packages will be shipped out within 24 hours except weekends and holidays.

Track your order

Once your order is shipped, you will receive an email from us containing the tracking information. Tracking information is also available in your "Order Details" page.

Shipping areas

The products can be delivered to the most of states in United States except American Samoa, Micronesia, Guam, Marshall Islands, Northern Mariana Islands, Palau, Puerto Rico and U.S. Virgin Islands.

International shipping

We are sorry that the international shipping service is not supported for the time being.

Shipping Carriers

We work with 4 carriers to make sure your order will arrive on time: UPS, USPS, FedEx and Amazon Logistics US.

Delivery Time Exceeded

Shipping might experience delay due to covid-19. If your order is delayed, please contact us via email service@waterdropfilter.com, we will check the situation with the transportation company in time. Thanks for your understanding and support.

Note: We don't accept requests to specify a certain carrier to deliver the package.

Shipping origin

The package will be shipped from one of our US warehouses closest to your location.

* If you have any questions, you can contact our customer via LiveChat or email to service@waterdropfilter.com, we will reply to you as soon as possible!

Sales Tax

The sales tax will be collected in accordance with U.S. tax laws. Customers whose delivery address within the following states will be charged a certain tax at checkout, and the tax rate is determined by the local government. (AZ, CA, CO, FL, GA, IL, IN, KY, MA, MD, MI, MN, NC, NJ, NV, NY, OH, PA, TX, UT, VA, WA, WI) All taxes collected will be reported and filed to the IRS on time.

30-Day Return ×
No Worries Guarantee

Thank you for shopping at Waterdrop. We appreciate your decision to purchase our products and aim to ensure a rewarding experience throughout your exploration, evaluation, and purchase process.

Order Cancellations:

If you wish to cancel an order, please contact our customer service team.

1. If you contact us within 24 hours of purchase:

Since most orders ship the same day, kindly email us at contact service@waterdropfilter.com or call us at (888)-352-3558 within 24 hours of placing the order. There will be no cancellation fees for standard items canceled before shipment. If the package has already been shipped, we will provide a prepaid label for return, and once we receive the package from you, we will issue a refund.

2. If you contact us after 24 hours of purchase:

  • In such cases, you will need to bear the shipping fee if the package is already shipped (subject to our system status, not the order status).
  • The product must be damage-free, packed in the original packaging we sent to you, and returned with the original receipt of purchase.
  • We will process your refund after receiving the package.

30-day Risk-free Return Policy:

  • You are eligible to return any item* within 30 days of receipt.
  • All returned items must be disassembled and repackaged as they were originally received.
  • The 30-day risk-free return policy applies to all item*.
  • No restocking fee will be charged, but customers are responsible for the return shipping cost. We will cover the return postage expenses in the case of any return requests related to a quality issue.
  • Please note that the 30-day risk-free return policy is only valid for orders* within the continental United States.

Return after 30 Days of Receipt:

  • You may still return any item after 30 days of receipt.
  • In this case, customers are responsible for the return shipping cost. The total cost of shipping will be deducted from your refund.
  • All returned items must be disassembled and repackaged as they were originally received.
  • A 10% restocking fee will be applied to all returned products. However, in the event of any return requests related to a quality issue, we offer free returns or replacement with a new product.

1-year Warranty:

Enjoy peace of mind and confidence in your purchase with our 1-year warranty, backed by lifetime technical support.

If you receive a damaged item and wish to file a claim, please email service@waterdropfilter.com with your order information and a picture of the damaged or incorrect product. We are eager to assist you.

For products that become defective during the warranty period due to a quality issue, rather than your own breakage or misuse, we can accept a free return, provide free repair service, or issue a new replacement.

Exchange Policy:

1. Defective Products:

If you receive a product with quality issues or damages, please contact our customer service team within 30 days of receipt. We will provide you with a free exchange service. Please provide order information and photos of the damaged product when contacting our customer service team for better assistance.

2. Non-Quality Issues:

If you wish to exchange a product for non-quality-related reasons, please note the following:

  • The product must be within 30 days of purchase and unused.
  • The product must be returned in its original packaging, along with the original purchase receipt.
  • You will be responsible for the re-shipping costs.
  • Please note that the exchange policy is only applicable to orders made on the official waterdropfilter.com.

How to Return a Product?

If you would like to return a product, please follow these guidelines:

Step 1: Contact our customer service team before returning a product. We will respond with return instructions within 24 hours.

How to contact us:

Email: service@waterdropfilter.com

Toll-free Tel: (888)-352-3558

Step 2: Prepare the package after receiving confirmation from the customer service team, and please note the following requirements:

  • Include the order number in the package. You can print out the order detail page or leave a note inside the package.
  • Ensure the package contains the original receipt of purchase.
  • Return the product in the original packaging we provided.
  • The product must be damage-free (this does not apply to defective products, as damage will void the refund).

Step 3: Contact our customer service and provide your return tracking number. We will track the package and process your refund within 5 working days after receiving and inspecting the package.

General Information for All Returns:

1. Defective Products:

If you receive a product with quality issues or damages, please contact our customer service team. we provide free returns, replacement with a new product, and comprehensive technical support.

2. Non-Quality Issues:

  • You are responsible for shipping the products to the return address provided.
  • Returned items will undergo inspection before issuing a refund.
  • Refunds will be processed within 5 working days after the item has been inspected, and it may take 4-7 days to be reflected in your credit card statement.
  • We highly recommend using a traceable and insurable shipping method for your return. We are not responsible for returns lost or damaged in transit, and you will need to file a shipping claim.
  • Please note that orders made via 3rd-party sellers, including Amazon, are not eligible for our return policy.
  • All returned items must be disassembled and repackaged as they were originally received. Items returned in a condition other than "like new" will be subject to a 10% restocking fee to cover repairs or part replacement. The restocking fee will be deducted from your refund.

Return Address:

Ecolife Technologies, Inc.

1951 S Lynx Pl,

Ontario, CA 91761

United States

Tel: 888-352-3558

Price Match Policy:

At Waterdrop, we highly value our customers' shopping experience. That's why we offer a 30-day price match guarantee. If you happen to notice a price reduction on the item you purchased at waterdropfilter.com within 30 days of your purchase, you are eligible to claim a price-match refund. To request a refund, please contact us at service@waterdropfilter.com. We are here to assist you promptly.

Note: This Waterdrop price-change refund policy only applies to items shipped and sold by waterdropfilter.com. If you're buying from a different vendor, you'll need to contact that seller if the price drops.

Copy successfully!
Operating temperature
5-38℃/ 41-100℉
Working pressure
14-87 psi (1-6 bar)
Flow rate
1.32 gpm/ 5 Ipm
Filter capacity
up to 8000 gallons/ 30280 liters (for chlorine reduction)
Feed water requirement
municipal tap water
Waterdrop under counter single stage water filter adopts a compact design while providing you with an outstanding water filtration experience. The ultimate aim is to improve the quality of your tap water using advanced filtration technology. The system uses PP cotton and activated carbon to reduce impurities in your tap water, including rust, heavy metals, sediment, chlorine, taste, and odor. It also ensures the safety of the filtered water, thanks to a 100% safe, recyclable housing, which makes the filter free of harmful heavy metals like chromium, polybrominated diphenyl ethers, polybrominated biphenyls, cadmium, mercury, and lead.
Unlike other under sink water filtration systems in the market, this Waterdrop under cabinet water filter can enlarge its filter area to deliver a superior filtration performance. The water inlet and outlet are also larger than usual to ensure a smooth, stable, and fast water flow of up to 1.3 gpm.
Get this Waterdrop water filter for sink to guarantee safe, healthy, and clean drinking water for you and your family at all times.

What is the difference between U8-ST and U8-FC?

While you can connect WD-U8-ST directly to your original kitchen faucet without drilling a hole on your countertop, WD-U8-FC is designed to use our exclusive stainless-steel faucet, which requires drilling a hole on your countertop.

What are the differences between U8-ST / U8-FC and WD-UA / UB?

Our U8-ST/U8-FC under sink water filtration system functions by enlarging the filter area to provide an improved overall filtration performance. The filtration is more intensive as the water passes through the filter for longer. So, the filtered water is well-filtered with a much better taste. Also, U8-ST/U8-FC have larger outlet and inlet sizes than the WD-UA/UB, which translates to a faster and more consistent water flow.

How to install this under counter single stage water filter?

It is a simple DIY installation. Start by connecting the red tubing to the cold water source and red filter inlet. The next step is to connect the blue tubing to the blue filter outlet and faucet inlet. You can be done in less than 3 minutes and start using your system without any external help from a plumber.

How to replace the filter for this under sink water filtration system?

Once you twist the old filter, you can remove it and install the new filter with another twist. However, you should turn off the water valve before replacing the filter.

How long is the service life of this single stage filter?

You can get up to 8,000 gallons of water, although the exact amount depends on the local water requirement. We advise that you do a filter replacement once the filtered water comes with an unusual taste.

What contaminants can this under counter water purifier reduce?

This filter system is effective against chlorine, odor, large particles, heavy metals, and other impurities in your tap water.

What are the pros of this single stage water filtration system?

The filter combination in this Waterdrop under counter single stage water filter includes PP cotton and premium carbon, which ensures an effective reduction of heavy metals, large particles, odor, and chlorine. The somewhat larger filter size also guarantees a more effective filtration. The housing material adopted is 100% safe, with no content of heavy metals. You also get up to 8,000 gallons of filtered water over time, at a flow rate of 1.3 gpm. Waterdrop is here to deliver an optimized filtration experience!

What filtration materials does this under cabinet water filter use?

The filtration materials here include PP cotton and premium activated carbon, which helps improve water taste and reduce contaminants.

Can Waterdrop undersink water filter be recycled?

Yes, they can. We have adopted only 100% recyclable and eco-friendly materials in this system. Our choice of heavy metal-free housing ensures harmful metals like chromium, polybrominated diphenyl ethers, polybrominated biphenyls, cadmium, mercury, and lead do not contaminate the environment when the old filter is discarded.
Powerful Filtration
Waterdrop under counter single stage water filter efficiently reduces chlorine, odor, taste, heavy metals, particles, sediments, and more in tap water. Overall, your drinking water tastes better and crispier.
Two Available Options
You can connect option A directly to your original kitchen faucet, removing the need to drill a hole.
Option B comes with an exclusive stainless-steel faucet that requires drilling a hole.
Both options provide you with excellent filtration experience with stable and fast water flow, allowing your household to enjoy fresh and pure water.
Larger Filter Area
We made the diameter and length of the undersink water filter wider and longer to create an enlarged filtration area. This means you get a higher filtration capacity and longer life.
Trustworthy Materials
The Waterdrop water filter for sink contains no harmful heavy metals, such as lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, and more. It adopts only eco-friendly materials; hence, you can rest assured of drinking safe water with no health risks.
Versatile Applications With Single Filter
The under counter water purifier satisfies your family's multiple water needs for the whole day, including drinking water, cleaning, cooking, and feeding pets. Now you can enjoy optimal purification at all times.