Waterdrop 10UA Under Sink Water Filter System
- 11000 gallons or up to 12 months filter life
- NSF/ANSI 42 & 372 certified
- 0.75 gpm at 60 psi tested flow
- Cold municipal water only, 35 to 100 F
- Up to 700 ppm TDS supply
- 3/8 inch line plus 3/8-1/2 inch convertor
- Replacement filter WD-RF10
Last refreshed Sep 11, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A no-drill under-sink carbon filter that feeds your existing faucet, a simple fix for chlorine taste in city water. It is not for well water or hot lines, and it does not lower dissolved minerals.
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ASIN: B083NPW1DNModel: 10UACategory: Undersink & Countertop Water Filters
Overview
A coconut-shell activated carbon cartridge filters cold tap water inline under the sink and sends it straight to the existing faucet. Push-to-connect fittings and a twist-and-lock filter mean no plumber and no extra faucet hole.
Using the faucet you already have avoids drilling and shortens the install. Carbon targets chlorine, taste and odor rather than dissolved minerals, so a TDS meter will barely move, and the cartridge needs replacing once a year.
Who it's for
Renters and homeowners on municipal water get filtered water from the main tap with a short install. Well users and those chasing low TDS readings need a different system.
Pros and cons
- Connects to the existing faucet
- No plumber or drilling
- Quick twist-and-lock cartridge swap
- Larger dirt holding area resists clogging
- Cold municipal water only
- Does not lower TDS
- Coconut carbon may affect allergy sufferers
- Faucet must use a female thread
Performance notes
Filtration happens as water passes slowly through the carbon block, so contact time and filter age govern how much chlorine and taste it removes. Flow drops as the cartridge loads with sediment, which is why it is sized to a set gallon count.
Specifications
| Brand | Waterdrop |
|---|---|
| Model | 10UA |
| Dimensions & fit | |
| Item Dimensions L X W X H | 3.9 x 3.6 x 12.3 inches |
| Item weight | 1.31 kg |
| Capacity & performance | |
| Capacity | 11000 gallons |
| Maximum Flow Rate | 0.75 gpm at 60 psi |
| Filter Life Cycle | 1 year |
| Lowertemperature Range | 35 F |
| Upper Temperature Rating | 100 F |
| Power & efficiency | |
| Power Source | Mechanical water pressure |
| Construction & materials | |
| Material Type | NSF/ANSI Approved Components |
| Product Shelf Life | 365 days |
| Compatibility & installation | |
| Installation Type | Under sink |
| Compatible Water Purifier Models | Replacement filter WD-RF10 |
| Included components | |
| Included Components | System, 2 hoses, 3/8-1/2 convertor set, 2 screws, Teflon tape |
| Unit Count | 1 Count |
| Warranty & support | |
| Warranty Description | 1 year manufacturer |
| Supported Water Tds Level Maximum Ppm | 700 |
| Other details | |
| Purification Method | Activated carbon |
| External Testing Certification | NSF/ANSI 42 & 372 |
| Container Type | Box |
Frequently asked questions
How much cabinet space does the Waterdrop 10UA need?
The unit measures 3.9 x 3.6 x 12.3 inches, plus room for the 2 hoses.
Can the Waterdrop 10UA be used on well water?
No. It is designed for municipal tap water and cold water sources only, not well water or hot water.
Why does my TDS meter show no change?
The filter retains dissolved minerals such as calcium and magnesium, so PPM readings will not drop much.
Which faucets does it connect to?
Faucets with a female thread of 1/2 or 3/8 inch, using the included 3/8 inch line and convertor fitting.
What is the replacement cartridge?
WD-RF10, with a service life of up to 12 months on municipal water.