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 RCC7P-AK
Ravvy scores TSU 0.01 Micron Ultra Filtration Under Sink at 89.49 and RCC7P-AK at 92.4. RCC7P-AK takes the overall pick, best for homeowners with low water pressure seeking high-purity water with a balanced ph..
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.
Ravvy pick
iSpring
RCC7P-AK
92.4
$295
A powerhouse filtration solution for low-pressure environments that trades a bit of under-sink space and an electrical outlet for superior water taste and efficiency.
How they score
| Factor | TSU 0.01 Micron Ultra Filtration Under Sink | RCC7P-AK |
|---|---|---|
| Ease of Install | 82 | – |
| Filtration Depth | 95 | – |
| Flow Performance | 85 | – |
| Maintenance Ease | 88 | – |
| Water Efficiency | 100 | 92 |
| Flavor Profile | – | 95 |
| Filtration Quality | – | 98 |
| Pressure Performance | – | 96.5 |
| Installation Complexity | – | 78 |
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
RCC7P-AK
What owners praise
- Booster pump ensures high flow even with low incoming pressure
- Alkaline stage restores healthy minerals and improves taste
- Transparent first-stage housing allows for easy visual inspections
- Significantly reduces wastewater compared to non-pumped systems
- Comprehensive 6-stage filtration targets over 1,000 contaminants
What to know first
- Requires an under-sink power outlet for the pump
- The pump adds a slight humming noise during the fill cycle
- Larger footprint than 5-stage systems due to the pump and extra filter
Skip it if renters with limited space or those who prefer a non-electric, silent filtration setup.
Specs side by side
| Spec | TSU 0.01 Micron Ultra Filtration Under Sink | RCC7P-AK |
|---|---|---|
| UPC | 840814171752 840814174432 840814187517 | 662425038022 |
| ASIN | B086YH42QP | B005LKKMYS |
| GTIN | 840814171752 840814174432 840814187517 | 662425038022 |
| Brand | Waterdrop | iSpring |
| Capacity | 2200 gallons | 75 gallons |
| Material | NSF/ANSI Approved Components | Acrylonitrile Butadiene Styrene, Plastic, Polyethylene, Polypropylene, Polystyrene |
| Brand Name | Waterdrop | iSpring |
| Model Name | waterdrop_wd_tsu_w | Reverse Osmosis System |
| Unit Count | 1 Count | 1 Count |
| Item Weight | 14 pounds | 20 pounds |
| Part Number | WD-TSU-W | RCC7P-AK |
| Manufacturer | Waterdrop | iSpring Water Systems |
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