Ultrafiltration Under Sink Water Filter System Waterdrop TSU-W
WD-TSU-W system product view 2
WD-TSU-W system product view 3
WD-TSU-W system product view 4
WD-TSU-W system product view 5
WD-TSU-W system product view 6
Ultrafiltration Under Sink Water Filter System Waterdrop TSU-W
WD-TSU-W system product view 2
WD-TSU-W system product view 3
WD-TSU-W system product view 4
WD-TSU-W system product view 5
WD-TSU-W system product view 6
Trusted by 27+ Customers ★★★★★ ★★★★★ 4.6 out of 5

Waterdrop TSU-W Ultrafiltration Under Sink Water Filter System

Waterdrop SKU: RP-WD-TSU-W

Delivers mineral-retaining filtered water without electricity or RO wastewater.

Price
Regular price $18999
Regular price Sale price $18999
Save $-189.99
/
  • In stock, ready to ship
  • Backordered, shipping soon
Shipping calculated at checkout.
Request a Price Match

Found a lower advertised price for this exact item from an eligible retailer? Send us the offer for review.

This opens an email addressed to support@waterwellnessworks.com. No personal information is collected on this page.
Shipping, Returns, & Warranties

Orders Processing: We offer fast and reliable shipping across the continental U.S., with free shipping available on orders over $200 (exclusions may apply based on brand and product type). Orders are typically processed within 1–2 business days and transit time is 4–8 business days. Larger items may ship via freight and require a scheduled curbside delivery. Please ensure your contact details are accurate at checkout. For questions about delivery timelines, shipping eligibility, or special requests, feel free to contact us directly.

Order Confirmation: As soon as you place your order, you will receive an order confirmation e-mail.  This means that we have received your order in our system.

30 Day Returns: If your order arrives damaged, we will exchange you a replacement. Our return policy cover from the date of purchase. To be eligible, items must be unused, in their original packaging, and accompanied by proof of purchase. Defective products are eligible for free returns, with options for a refund or replacement. Customer remorse returns may incur return shipping fees and restocking fees. Refunds are processed within a specified timeframe, subject to restocking fees if applicable. Late or missing refunds should be addressed with your bank or credit card company first. Exchanges may be accepted for defective or damaged items. Shipping costs for returns are typically the responsibility of the customer, except in cases of damaged products. For more details, visit our Refund Policy Page.

View our Full Brand Warranty Page Here

Waterdrop TSU-W for Mineral Retaining Under Sink Water

The Waterdrop TSU-W is a compact under sink ultrafiltration system that uses separate sediment, ultrafiltration, and carbon stages. It operates without electricity and produces no wastewater.

Best suited for: Homes that want under sink filtration while retaining naturally occurring dissolved minerals and avoiding a reverse osmosis drain connection.

Why choose this system

Choose the TSU-W when no wastewater, no electrical connection, and a compact multistage ultrafiltration design are the priorities.

How this benefits your home

  • Fine filtration with minerals retained: The 0.01 μm ultrafiltration stage filters fine material while retaining dissolved minerals naturally present in the water.
  • No water sent to a reject drain: The system produces no wastewater, helping households avoid the water loss associated with reverse osmosis reject flow.
  • No electricity cost: The filtration process does not require an electrical connection for normal operation.
  • More usable cabinet space: The compact integrated design fits beneath the sink without a separate storage tank.
  • Maintenance without guesswork: Electronic filter reminders help owners service each stage when due instead of replacing cartridges prematurely.
  • Less dependence on bottled water: Convenient under sink filtered water can reduce recurring bottle purchases and packaging waste.
Ultrafiltration Under Sink Water Filter System Waterdrop TSU-WWD-TSU-W product details

Specifications

Model WD-TSU-W
Filtration Ultrafiltration
Membrane rating 0.01 μm
Replacement filters TSPP, TSUF, and TSCT
Certification NSF/ANSI 372
Dimensions 14.0 × 4.7 × 14.6 inches
Wastewater None
Electricity required No

Installation and ownership

Plan for a cold water feed connection, dedicated faucet, and cabinet clearance. Replace each cartridge according to its indicator and the manual. This is an ultrafiltration system and is not intended to reduce dissolved solids like a reverse osmosis membrane.

Manuals and technical documents

Frequently asked questions

Is the TSU-W a reverse osmosis system?

No. It uses a 0.01 μm ultrafiltration membrane and retains dissolved minerals rather than reducing TDS like reverse osmosis.

Does the TSU-W create wastewater or require electricity?

No reverse osmosis reject stream or electrical connection is required for normal filtration.

What is required for installation?

Plan for under sink space, a cold water connection, and the dedicated faucet. Confirm cabinet and countertop clearance before ordering.

Which replacement filters does it use?

The TSU-W uses TSPP, TSUF, and TSCT replacement stages. Service timing depends on the individual stage, source water, and use.
Recently viewed