
ZeroWater 20-Cup
Score: 88/100
Epic Pure
Score: 85/100Rankings

The ZeroWater 20-Cup Ready-Pour is a countertop water filtration dispenser featuring 5-stage ion exchange filtration that removes virtually all dissolved solids, achieving 0 TDS water. It includes a TDS meter for quality verification, though users must manually test the water rather than relying on an automatic display. It is best suited for health-conscious consumers and small offices seeking superior tap water taste and purity verification.

The Epic Water Filters Pure Filter Pitcher is a 10-cup gravity-fed pitcher made from BPA-free Tritan plastic, designed to remove over 200 contaminants including PFAS, lead, and fluoride. It features a proprietary solid carbon block filter certified by NSF/ANSI standards, offering a 150-gallon lifespan and a slower filtration process that prioritizes thorough contaminant removal. It is best suited for health-conscious users prioritizing PFAS, lead, and fluoride removal in municipal tap water.
| Attribute | ![]() | ![]() |
|---|---|---|
12 months | 150 monthsbest | |
1.9 gallons per hour | 2.23 gallons per hourbest | |
99.6 %best | — | |
1.56 gallons | 10 gallonsbest | |
5 stagesbest | 1 stages | |
11.75 inchesbest | 10 inches | |
5.5 inches | 6 inchesbest | |
10.63 inchesbest | 10 inches |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance & Filtration(6) | ||
Certifications | NSF 53, IAPMO | NSF/ANSI 42, 53, 401, P473 |
Contaminants Reduced | Lead, Chromium, Mercury, PFOA/PFOS | PFAS, Lead, Fluoride, Chlorine, Uranium, Heavy Metals, Pharmaceuticals |
Filtration Technology | Carbon block, Ion exchange | Solid Carbon Block |
Filter Lifespan (months) | 12 months | 150 months |
Flow Rate (gallons per hour) | 1.9 gallons per hour | 2.23 gallons per hour |
Filtration Stages (stages) | 5 stages | 1 stages |
Capacity & Dimensions(5) | ||
Water Capacity (gallons) | 1.56 gallons | 10 gallons |
Height (inches) | 11.75 inches | 10 inches |
Width (inches) | 5.5 inches | 6 inches |
Depth (inches) | 10.63 inches | 10 inches |
Product Weight (pounds) | 3.3 pounds | 2 pounds |
Design & Installation(4) | ||
Installation Type | Countertop | Countertop / Pitcher |
Housing Material | BPA-Free Plastic | Tritan Plastic |
Filter Type | Ion Exchange | Carbon Block |
Power Requirement | None | None (Indicator only) |


Products in the top-left offer the best value (high score, low price).

Professional reviewers highlight the product's superior filtration effectiveness, noting it removes significantly more dissolved solids than leading competitors. The inclusion of a TDS meter is praised for eliminating guesswork regarding filter life, though some note legacy spout design issues and the inconvenience of manual testing compared to newer integrated display models.
Users appreciate the product's ability to improve tap water taste and quality, making it suitable for health-conscious consumers and those looking to reduce plastic waste. It is valued as a secondary filtration layer even for homes with whole-house filters, though some users may find the manual testing process less convenient than automatic indicators.

Professional reviewers praise the Epic Pure for its balanced performance and rigorous NSF certifications, particularly for PFAS removal. Experts highlight its ability to reduce contaminants to non-detect levels while offering a cleaner taste than ZeroWater.
Everyday users commonly praise the product for its improved water taste, ease of use, and environmental impact. Many report significant flavor improvements after the initial slow filtration period. Recurring complaints focus on the slow fill time, filters clogging prematurely in hard water areas, and occasional initial plastic odors.


Choose ZeroWater for fastest filtration and zero TDS, or Epic for broader contaminant removal and PFAS certification.