iFilters CNTP-1C
Score: 65/100
ZeroWater 32-Cup Dispenser
Score: 88/100Rankings
The ZeroWater 32-Cup Ready-Read is a high-performance countertop dispenser that utilizes 5-stage ion exchange to remove 99.9% of dissolved solids. Its standout feature is the integrated TDS meter, which allows users to monitor water purity in real-time. While the filtration speed is slow due to its gravity-fed design, it is ideal for users prioritizing water quality over speed.
The iFilters CNTP-1C is a portable, single-stage countertop water filtration system designed for easy faucet connection without permanent installation. It utilizes a 0.5-micron coconut shell carbon block filter to reduce chlorine, heavy metals, VOCs, and cysts, making it suitable for renters and small spaces. While it offers strong NSF-certified performance for basic contaminant reduction, it lacks the comprehensive purification capabilities of multi-stage units.
| Attribute | | |
|---|---|---|
6 monthsbest | — | |
0 % | 99.9 %best | |
— | 2 gallonsbest | |
1 stages | 5 stagesbest | |
13 inchesbest | 10.375 inches | |
5 inches | 6 inchesbest | |
6.5 inches | 13.125 inchesbest | |
| ↓ lower better | 4 poundsbest | 4.07 pounds |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance & Filtration(7) | ||
Certifications | NSF/ANSI 372, NSF/ANSI 42 | IAPMO |
Contaminants Reduced | Sediment, Cysts, VOCs, Pesticides, Chloramines | Lead, Chromium, PFOA/PFOS, Mercury, Cadmium, Chlorine |
Filtration Technology | Coconut Carbon Block | Ion Exchange |
Filter Lifespan (months) | 6 months | N/A months |
Flow Rate (gallons per hour) | null gallons per hour | N/A gallons per hour |
TDS Reduction (%) | 0 % | 99.9 % |
Filtration Stages (stages) | 1 stages | 5 stages |
Capacity & Dimensions(5) | ||
Water Capacity (gallons) | null gallons | 2.0 gallons |
Height (inches) | 13.0 inches | 10.375 inches |
Width (inches) | 5.0 inches | 6.0 inches |
Depth (inches) | 6.5 inches | 13.125 inches |
Product Weight (pounds) | 4.0 pounds | 4.07 pounds |
Design & Installation(2) | ||
Installation Type | Faucet Mount | Countertop |
Filter Type | Carbon Block | Ion Exchange |
Products in the top-left offer the best value (high score, low price).
Professional reviewers and editors note that the iFilters CNTP-1C offers strong NSF-certified performance for basic contaminant reduction, particularly chlorine and VOCs. However, experts highlight that as a single-stage carbon block system, it lacks the comprehensive purification capabilities of multi-stage or reverse osmosis units, specifically noting its inability to reduce TDS.
Consumer feedback is limited but generally positive, with high ratings on the official site. Users commonly praise the ease of installation and the noticeable improvement in water taste. Recurring themes in similar products include concerns about filter longevity in high-sediment water and occasional compatibility issues with faucet adapters.
Professional reviewers and experts highly praise the ZeroWater 5-stage filtration process, noting that it delivers water quality comparable to or better than reverse osmosis systems. The integrated TDS meter is specifically highlighted as a key advantage.
Everyday users commonly praise the product for producing noticeably cleaner-tasting water and the convenience of the large 32-cup capacity. However, a recurring complaint is the slow filtration speed.
