96.6
Best for long distance thru-hikers and weight-conscious backpackers
- Removes 99.999999% of bacteria
- Filters up to 100,000 gallons
- Fits standard soda and water bottles
$46
Head to head · Water Filtration
TSU 0.01 Micron Ultra Filtration Under Sink vs TSA 8 Layer Under Sink Water Filter System
Ravvy scores TSU 0.01 Micron Ultra Filtration Under Sink at 89.49 and TSA 8 Layer Under Sink Water Filter System at 89.45. TSU 0.01 Micron Ultra Filtration Under Sink takes the overall pick, best for health-conscious homeowners wanting mineral-rich water without the waste of ro systems.
Ravvy pick
89.5
$133
A top-tier choice for those who want ultra-fine filtration and a smart reminder system, provided they are comfortable drilling a dedicated faucet hole.
89.5
$100
A top-tier choice for municipal water users who want easy DIY installation and mineral retention at the cost of a slightly reduced flow rate.
How they score
| Factor | TSU 0.01 Micron Ultra Filtration Under Sink | TSA 8 Layer Under Sink Water Filter System |
|---|---|---|
| Ease of Install | 82 | – |
| Filtration Depth | 95 | 91 |
| Flow Performance | 85 | – |
| Maintenance Ease | 88 | 94 |
| Water Efficiency | 100 | – |
| Flow Consistency | – | 82.5 |
| Space Efficiency | – | 88 |
| Ease of Installation | – | 98 |
TSU 0.01 Micron Ultra Filtration Under Sink
What owners praise
- Ultra-fine 0.01 micron filtration stage
- Zero wastewater production for eco-friendly use
- Smart LED lifespan reminders for each filter
- Space-saving design fits narrow cabinets
- Retains healthy minerals like calcium and magnesium
What to know first
- Requires drilling a hole in the countertop
- Does not reduce Total Dissolved Solids (TDS)
- PP filter requires frequent 6-month changes
Skip it if households with high tds levels or those requiring well water treatment
TSA 8 Layer Under Sink Water Filter System
What owners praise
- Retains healthy minerals like calcium and magnesium
- No-drill installation connects to existing faucet
- Triple-stage design offers specialized fluoride and PFAS reduction
- Pressure-tested housing prevents common under-sink leaks
- Twist-and-lock filter changes take seconds
What to know first
- Does not reduce TDS or water hardness
- Flow rate is slower than unfiltered tap water
- Not compatible with hot water lines
Skip it if well water users without a pre-filter or those needing to reduce total dissolved solids
Specs side by side
| Spec | TSU 0.01 Micron Ultra Filtration Under Sink | TSA 8 Layer Under Sink Water Filter System |
|---|---|---|
| UPC | 840814171752 840814174432 840814187517 | 840814194461 840814194478 |
| ASIN | B086YH42QP | B08P58F9SG |
| GTIN | 840814171752 840814174432 840814187517 | 840814194461 840814194478 |
| Brand | Waterdrop | Waterdrop |
| Capacity | 2200 gallons | 8000 gallons |
| Material | NSF/ANSI Approved Components | NSF/ANSI Approved Components |
| Brand Name | Waterdrop | Waterdrop |
| Model Name | waterdrop_wd_tsu_w | WD-TSA-10 |
| Unit Count | 1 Count | 1 Count |
| Item Weight | 14 pounds | – |
| Part Number | WD-TSU-W | 1 |
| Manufacturer | Waterdrop | Waterdrop |
Other options in this category
93.7
Membrane Solutions
Personal Water Filter Straw S1 4 Pack Blue
Best for backcountry hikers, international travelers, and disaster preparedness kits
- 0.1 Micron Ultrafiltration
- 5,000 Liter Capacity
- NSF 42, 372, and 401 Certified
$30
93.6
Best for health-conscious families and diy homeowners who dislike the taste of flat ro water
- Alkaline Remineralization Stage
- 75 Gallon Per Day Capacity
- Transparent Sediment Filter Housing
$235