Waterdrop 15UB
Score: 88/100
Waterdrop TSA
Score: 82/100Rankings
The Waterdrop 15UB is a highly rated under-sink filter offering 2 years of filtration and strong certification against PFAS and lead. Its main limitation is the lack of TDS reduction and cold-water-only operation. It is best suited for renters and homeowners seeking a low-maintenance, high-capacity solution.
The Waterdrop TSA is a compact, 8-stage under-sink filtration system designed to reduce over 100 contaminants while retaining beneficial minerals. It lacks TDS reduction capabilities and is limited to cold municipal water. It is best suited for renters or DIYers wanting a quick, low-maintenance upgrade for taste and safety.
| Attribute | | |
|---|---|---|
0.75 gallons per minute | 1 gallons per minutebest | |
24 monthsbest | 18 months | |
3 | 8best | |
19,000 gallonsbest | — | |
1 yearsbest | 1 yearsbest | |
| ↓ lower better | 16.34 inchesbest | 16.93 inches |
| ↓ lower better | 3.46 inchesbest | 6.65 inches |
| ↓ lower better | 3.66 inchesbest | 14.88 inches |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Dimensions & Fit(3) | ||
Height (inches) | 16.34 inches | 16.93 inches |
Width (inches) | 3.46 inches | 6.65 inches |
Depth (inches) | 3.66 inches | 14.88 inches |
Performance & Filtration(8) | ||
Certifications | NSF/ANSI 42, 53, 372; IAPMO | NSF/ANSI 372 |
Contaminants Removed | PFAS, PFOA/PFOS, Lead, Chlorine, Heavy Metals, Sediment, Odor | PFAS, Chlorine, Heavy Metals |
Flow Rate (gallons per minute) | 0.75 gallons per minute | 1 gallons per minute |
Filter Life (months) | 24 months | 18 months |
Filtration Stages | 3 | 8 |
Filter Capacity (gallons) | 19000 gallons | null gallons |
Filtration Technology | Multistage | Multi-Stage Carbon/KDF/Resin |
TDS Reduction (percent) | false percent | 0 percent |
Features & Accessories(1) | ||
Included Faucet | true | false |
Installation & Compatibility(2) | ||
Installation Type | Under Sink, Push-to-Connect | Direct Connect |
Operating Pressure (psi) | 60 psi | 125 psi |
Products in the top-left offer the best value (high score, low price).
Professional reviewers recognize the Waterdrop 15UB for its certified safety and ease of use, highlighting the IAPMO certification and zero-leak performance.
Everyday users express strong satisfaction with the simplicity of installation, space-saving design, and noticeable improvement in water taste.
Professional reviewers and editors praise the Waterdrop TSA for its compact design, quick installation, and comprehensive 8-stage filtration that targets harmful contaminants like PFAS and heavy metals.
Everyday users commonly praise the ease of installation and report significant improvements in water taste, with some finding the lack of TDS reduction limiting.
