UR90 Under-Sink Water Filter Cartridge (Includes Battery), 1,000 Gallon Capacity
WaterChef® Premium Under-Sink Filter Cartridges
ENJOY SUPERIOR PERFORMANCE AND A 1,000 GALLON RATED CAPACITY!
Combining the power of solid carbon block filtration with a unique, proprietary blend of additional filter media, WaterChef’s innovative Big Block™ Filtration technology maximizes contaminant reduction and delivers up to 1,000 GALLONS (3,785 L) of freshly filtered water with a single filter cartridge!
This unique formula provides unsurpassed contaminant reduction for a broad range of common tap water contaminants including:
- Lead
- Mercury
- Microplastics
- Cysts (including Giardia and Cryptosporidium)
- Chlorine
- Chloramine
- PFOA/PFOS (PFAS "Forever Chemicals")
- Microplastics
- Chlorine By-Products (such as Trihalomethanes)
- Synthetic Contaminants (such as Pesticides and Herbicides)
- Industrial Contaminants (such as Volatile Organic Compounds (VOCs))
- NSF/ANSI Standard 401 Emerging Contaminants (such as Pharmaceuticals and Detergents)
- Petroleum Contaminants (such as Benzene and MTBE)
Additionally, the UR90's unique media formulation allows beneficial minerals (such as Calcium, Magnesium, and Potassium) to remain in the water. The result is great-tasting water that is cleaner, healthier, and naturally balanced (without the de-mineralization and “flat” taste associated with other water filtration technologies like reverse osmosis and distillation).

With WaterChef you’ll enjoy premium quality water at a fraction of the cost! You’ll also enjoy the convenience of a 1,000 GALLON rated cartridge capacity (That’s over 7,500 plastic water bottles!).
For most households, that translates into just ONE filter cartridge replacement per YEAR! (Compare that to the cartridges for pitcher filters, faucet filters and refrigerator filters that are so tiny that they can require as many as 25 replacements per year!) Plus, fewer cartridges to change means less waste too!
Sadly, the water filtration industry is riddled with manufacturers and sellers who make unvalidated and exaggerated performance claims. Rest assured knowing that WaterChef has invested in independent NSF/ANSI testing and certification by one of the industry's most trusted authorities, IAPMO Research and Testing.
Requiring the strictest of testing and compliance standards, the IAPMO Platinum Seal is awarded to only the most reliable and trusted producers of quality water treatment systems. IAPMO is valued by consumers, manufacturers, retailers, and regulatory agencies across the globe. Trust is what independent NSF/ANSI Certification is all about.
UR90 CARTRIDGE
Big Block™ Filtration
the Cost of Competing Brands
Based on IAPMO testing data with typical water conditions. Actual performance may vary.
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Great water filter cartridge. Love the fact that it includes a battery and has a sensor feature that lets you know when it's time to replace the water filter. I decided to buy this directly from Waterchef instead of Amazon. Great purchase!
Product CommentsThis was a replacement for the previous water filter cartridge I was using from Waterchef. Easy online checkout process. The customer rep was very informative when I had questions about this product before ordering it online.
The filter is great the service sucks.
Product CommentsI have no problem with the filter, the water that come through this filter taste great. However, I am having problems with the black box that monitor the water flow and cannot get anyone on the phone to correct it for me. Now this is my second filter I have purchased, I have never had problems like this before, if someone does not call me back soon, I will have to say don't buy any product from WaterChef there is no service.

In an industry riddled with unvalidated and misleading performance claims, having a trusted, independent “third party” organization like IAPMO, NSF, or WQA evaluate a water filtration system against official industry standards (NSF/ANSI Standards) gives you the ability to make an informed choice about the performance claims of a filter system. These Standards have been developed by industry experts, public health officials, and consumer representatives to ensure your safety by validating manufacturer claims.
Some water filter manufacturers base their performance claims on internal test results from their own laboratories, but you would have to know them very well to trust whether the claims they make for their products are true or misleading. Having a trusted testing organization “validate” performance claims gives you the peace of mind you are looking for when it comes to selecting the right system for you and your family.
NO. While it does have a limited ability to reduce fluoride, it is very dependent upon the pH of the water. If you have had your water tested and find that fluoride is a major concern for you, we recommend finding a reputable manufacturer for either a reverse osmosis or distillation system. Be sure that the system has been independently tested and certified by IAPMO, WQA, or NSF for fluoride reduction.
If you have questions or would like assistance, feel free to call WaterChef Customer Care at 1-800-879-8909. One of our support specialists can help you find a reputable manufacturer that fits your specific needs.
YES. While this cartridge has been specifically designed to reduce contaminants that are most commonly found in municipally treated water supplies, it also has the ability to work well on most disinfected wells.
Prior to making the decision to purchase any home water treatment system, it is advisable to have your well water tested first. Once you have your test report, call WaterChef Customer Care at 1-800-879-8909 and request to have one of our water quality specialists review the specific substances and contaminants shown on your report. This will help us to determine whether this system is the right solution for you.
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