
Waterdrop 15UB
Score: 88/100
Waterdrop 10UB PRO
Score: 78/100Rankings

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 10UB PRO is a compact under-sink filter that offers drill-free installation and reduces key contaminants like lead and PFAS. It does not reduce TDS, which may be a limitation for users seeking comprehensive mineral removal. It is ideal for renters or those who want a quick, non-permanent installation.
| Attribute | ![]() | ![]() |
|---|---|---|
0.75 gallons per minutebest | 0.75 gallons per minutebest | |
24 monthsbest | 12 months | |
3best | 3best | |
19,000 gallonsbest | 11,000 gallons | |
1 yearsbest | 1 yearsbest | |
| ↓ lower better | 16.34 inches | 12.3 inchesbest |
| ↓ lower better | 3.46 inchesbest | 3.6 inches |
| ↓ lower better | 3.66 inchesbest | 3.9 inches |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Dimensions & Fit(3) | ||
Height (inches) | 16.34 inches | 12.3 inches |
Width (inches) | 3.46 inches | 3.6 inches |
Depth (inches) | 3.66 inches | 3.9 inches |
Performance & Filtration(4) | ||
Certifications | NSF/ANSI 42, 53, 372; IAPMO | NSF/ANSI 42 & 372, IAPMO |
Contaminants Removed | PFAS, PFOA/PFOS, Lead, Chlorine, Heavy Metals, Sediment, Odor | Lead, Chlorine, PFAS, PFOA/PFOS, Rust, Heavy Metals, Sand, Bad Taste & Odor |
Filter Life (months) | 24 months | 12 months |
Filter Capacity (gallons) | 19000 gallons | 11000 gallons |
Installation & Compatibility(1) | ||
Installation Type | Under Sink, Push-to-Connect | Under Sink, Drill-free |


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.
