
iFilters CNTP-1C
Score: 65/100
Brita UltraMax Elite
Score: 78/100Rankings

The Brita UltraMax with Elite Filter offers high-volume water filtration with significant lead and contaminant reduction, making it ideal for households with safe municipal water. Its 6-month filter life and electronic indicator enhance convenience, though it lacks comprehensive heavy metal coverage like arsenic filtration. It is best suited for families and offices needing large volumes of improved-tasting water without complex installation.

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 | 6 monthsbest | |
0 %best | — | |
— | 6.3 gallonsbest | |
1 stagesbest | 1 stagesbest | |
13 inchesbest | 9.67 inches | |
5 inches | 13.94 inchesbest | |
6.5 inchesbest | 5.19 inches | |
| ↓ lower better | 4 pounds | 3 poundsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance & Filtration(4) | ||
Certifications | NSF/ANSI 372, NSF/ANSI 42 | null |
Contaminants Reduced | Sediment, Cysts, VOCs, Pesticides, Chloramines | Lead, PFNA, PFBA, Asbestos, Chlorine |
Filtration Technology | Coconut Carbon Block | Carbon Block |
TDS Reduction (%) | 0 % | null % |
Capacity & Dimensions(5) | ||
Water Capacity (gallons) | null gallons | 6.3 gallons |
Height (inches) | 13.0 inches | 9.67 inches |
Width (inches) | 5.0 inches | 13.94 inches |
Depth (inches) | 6.5 inches | 5.19 inches |
Product Weight (pounds) | 4.0 pounds | 3.0 pounds |
Design & Installation(2) | ||
Installation Type | Faucet Mount | Countertop |
Filter Type | Carbon Block | Elite |

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 assess the Brita UltraMax as a practical, large-capacity option for households with generally safe tap water, praising its solid lead reduction and cost-effectiveness while cautioning against its limited coverage of arsenic and fluoride.
Everyday consumers generally praise the product for its convenience, large capacity, and noticeable improvement in water taste, though some complain about space requirements and inability to filter arsenic/fluoride.