Waterdrop WD-17UA-UF Water Filtration System
- Capacity: 24000 Gallons
- Purification: Ultra Filtration
- Install Type: Under-Sink
- Material: NSF/ANSI Approved Components
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
An ultra filtration under-sink system rated well above activated-carbon-only options in gallon capacity, a strong pick for anyone wanting fewer cartridge changes over time.
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ASIN: B085G32P84Model: WD-17UA-UFCategory: Water Filtration Systems
Overview
The Waterdrop WD-17UA-UF is an under-sink ultra filtration system rated for 24000 gallons, built with NSF/ANSI approved components. It is a tall, narrow unit at about 3.9 x 3.6 x 19.1 inches and 4 pounds.
Ultra filtration is a finer membrane process than plain activated carbon, and the 24000 gallon rating here is far higher than a 2200 gallon activated carbon system in Waterdrop's own lineup, suggesting a longer stretch between cartridge changes. The tall, slim housing is built to fit a narrower vertical space under the sink rather than the wider footprint of some carbon systems.
- Ultra filtration
- 24000 gallon capacity
- NSF/ANSI approved components
- Under-sink install
Who it's for
Fits a household that wants a long-interval under-sink system and has vertical clearance for a 19 inch tall unit. Less suited to a cabinet with limited height clearance.
Pros and cons
- 24000 gallon rated capacity, well above carbon-only systems
- NSF/ANSI approved components
- Slim footprint despite tall housing
- 19.1 in height needs adequate under-sink clearance
Performance notes
Ultra filtration uses a finer membrane than activated carbon alone, and the 24000 gallon rating suggests a considerably longer service interval than carbon-only systems. NSF/ANSI approved components cover the material and structural standards the parts were built to.
Specifications
| Brand | Waterdrop |
|---|---|
| Model | WD-17UA-UF |
| Dimensions & fit | |
| Weight | 4 poundslower than 85% of 41 water filtration systems |
| Dimensions | 3.9 × 3.6 × 19.1 inches |
| Dimensions | 3.9 x 3.6 x 19.1 in |
| Capacity & performance | |
| Capacity | 24000 Gallons |
| Construction & materials | |
| Material | NSF/ANSI Approved Components |
| Compatibility & installation | |
| Install Type | Under-Sink |
| Other details | |
| Purification | Ultra Filtration |
Closest rivals on specs
Apec Water ROES-PH75 Water Filtration System- Weight 4 vs 3.11 pounds (+29%)
Frequently asked questions
How does ultra filtration differ from activated carbon in the WD-17UA-UF?
Ultra filtration uses a finer membrane process, and this unit's 24000 gallon rating is far higher than a comparable activated carbon system.
What are the dimensions of the WD-17UA-UF?
About 3.9 x 3.6 x 19.1 inches.
Does the WD-17UA-UF need under-sink installation?
Yes, it is built for under-sink install and its 19.1 inch height needs adequate cabinet clearance.