Waterdrop TSU Ultra Filtration Under Sink Water Filter
- 0.01 micron ultra filtration, 3 stage, tankless
- 1.05 gpm maximum flow
- 2200 gallons capacity, **24 months** filter life
- Includes faucet, tubing and converter, drilling required
- Does not lower TDS, up to 700 ppm supply listed
- 14.81 x 4.68 x 13.97 in, **14 lb**
- 1 year manufacturer warranty
Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A tankless three-stage ultra filtration system with its own faucet and a lifespan reminder, for kitchens that can take a drilled hole. It reduces odor and does not lower dissolved solids.
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ASIN: B086YH42QPCategory: Water Filtration Systems
Overview
Waterdrop packs the WD-TSU as a three-stage tankless under-sink system that runs on mains water pressure alone. A faucet, tubing and a converter ship with it, and a smart panel flags when the filter life is nearly used.
A defined flow rate, a long filter life and an included faucet make this a complete kit, with a lifespan reminder to stop guesswork. The faucet needs drilling, and dissolved solids are not reduced.
Who it's for
A homeowner who wants a dedicated tap for filtered water and accepts a hole in the counter is the match. Renters, and anyone who needs dissolved solids reduced, should choose a different type of system.
Pros and cons
- Own faucet included
- Smart lifespan reminder
- Tankless, no storage tank
- Runs on water pressure alone
- Drilling required for faucet
- Does not lower TDS
- Needs room for body and fittings
Performance notes
Water is forced through three stages at line pressure, and the ultra filtration membrane blocks particles above its pore size. Flow is limited by the stated maximum, and the lifespan reminder tracks usage so filters are swapped before the membrane clogs.
Specifications
| Brand | Waterdrop |
|---|---|
| Dimensions & fit | |
| Dimensions | 14.81 x 4.68 x 13.97 in |
| Weight | 14 lb |
| Item Dimensions L X W X H | 14.81"L x 4.68"W x 13.97"H |
| Item Weight | 14 poundshigher than 53% of 41 water filtration systems |
| Capacity & performance | |
| Capacity | 2200 gallons |
| Filter Life Cycle | 24 months |
| Maximum Flow Rate | 1.05 gpm |
| Lowertemperature Range | 35 degrees F |
| Upper Temperature Rating | 100 °F |
| Power & efficiency | |
| Power Source | Mechanical water pressure |
| Construction & materials | |
| Material Type | NSF/ANSI Approved Components |
| Compatibility & installation | |
| Installation Type | Under sink |
| Included components | |
| Included Components | Faucet, tubing, converter |
| Unit Count | 1 Count |
| Warranty & support | |
| Supported Water Tds Level Maximum Ppm | 700 ppm |
| Warranty Description | 1 year manufacturer |
| Other details | |
| Purification Method | Ultra filtration, 0.01 micron, 3 stage |
| Container Type | Box |
Closest rivals on specs
iSpring RCC7P-AK Reverse Osmosis System with Pump- Weight 14 vs 20 pounds (-30%)
iSpring RO500AK Alkaline Reverse Osmosis System- Weight 14 vs 21 pounds (-33%)
Apec Water ROES-100 Water Filtration System- Weight 14 vs 26 pounds (-46%)
Frequently asked questions
How do I know when to change the Waterdrop WD-TSU filter?
The listing mentions a smart lifespan reminder and a 24 month filter life, so the panel flags it. Follow the manual for the swap steps.
Does the WD-TSU need electricity?
The listed power source is mechanical water pressure, so the filtering itself uses no outlet. Check the manual for how the smart panel is powered.
Does the WD-TSU lower TDS or make drinking water softer?
No. The listing says it does not lower TDS, and it reduces odor.
Can I install it without drilling?
No. The listing says drilling is required for the included faucet.