CuZn Under Sink Water Filter
Score: 88/100
Waterdrop 15UB
Score: 88/100Rankings
The CuZn UC-200 is a high-performance under-sink filter featuring a 5-year lifespan and KDF-55 technology for effective contaminant removal without sacrificing flow rate. Its primary limitation is its large physical size, which may not fit in all under-sink cabinets, and its inability to reduce TDS. It is best suited for households with municipal water seeking low-maintenance, high-flow filtration.
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.
| Attribute | | |
|---|---|---|
2 gallons per minutebest | 0.75 gallons per minute | |
60 monthsbest | 24 months | |
3best | 3best | |
50,000 gallonsbest | 19,000 gallons | |
5 yearsbest | 1 years | |
| ↓ lower better | 15 inchesbest | 16.34 inches |
| ↓ lower better | 4.5 inches | 3.46 inchesbest |
| ↓ lower better | 4.5 inches | 3.66 inchesbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Value & Warranty(1) | ||
Warranty (years) | 5 years | 1 years |
Dimensions & Fit(3) | ||
Height (inches) | 15.0 inches | 16.34 inches |
Width (inches) | 4.5 inches | 3.46 inches |
Depth (inches) | 4.5 inches | 3.66 inches |
Performance & Filtration(7) | ||
Certifications | NSF/ANSI 42, 372, 61 | NSF/ANSI 42, 53, 372; IAPMO |
Contaminants Removed | Lead, Mercury, Chlorine, PFAs | PFAS, PFOA/PFOS, Lead, Chlorine, Heavy Metals, Sediment, Odor |
Flow Rate (gallons per minute) | 2.0 gallons per minute | 0.75 gallons per minute |
Filter Life (months) | 60 months | 24 months |
Filter Capacity (gallons) | 50000 gallons | 19000 gallons |
Filtration Technology | Carbon/KDF | Multistage |
TDS Reduction (percent) | 0 percent | false percent |
Features & Accessories(1) | ||
Included Faucet | false | true |
Installation & Compatibility(2) | ||
Installation Type | Under Sink | Under Sink, Push-to-Connect |
Installation Time (hours) | 0.5 hours | 0.05 hours |
Products in the top-left offer the best value (high score, low price).
Professional reviewers and editors praise the CuZn UC-200 for its industry-leading flow rate and exceptional longevity, positioning it as a superior alternative to standard under-sink filters.
Everyday users consistently report significant improvements in water taste and clarity, with many noting that the high flow rate remains unaffected even after years of use.
“Effortless install (under 30 minutes DIY) and longevity beyond 3-5 years in low-use homes.”
“Noticeable improvement in taste, clarity, and odor removal, with many reporting no flow reduction after years of use.”
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.
