Water Filter Guru
We Use Quantitative Data, Original Research, & Expert Insight to Test Water Filters
The Culligan ZeroWater pitcher earned an impressive 9.33 out of 10 in our testing. With a 5-stage filter and multiple size options, it offers strong contaminant reduction in a simple, easy-to-use design.
Full Video: https://youtu.be/-ygKsxMBMCQ?si=snMuyouyX7zjGFte
For over 20 years, Berkey became the go-to water filter for homesteaders, off-grid enthusiasts, preppers, and wellness-minded families. But how did it build such a loyal following? Here's the story behind Berkey's rise to popularity.
Full Video: https://youtu.be/-ygKsxMBMCQ?si=snMuyouyX7zjGFte
Not all water filters are created equal. We tested and ranked the best Berkey alternatives using independent lab testing before and after filtration. See which systems delivered the best contaminant reduction and earned the highest scores.
Full Video: https://youtu.be/-ygKsxMBMCQ?si=snMuyouyX7zjGFte
This system scored a perfect 10 for design. It’s made with 304 stainless steel, has an optional stainless steel spigot, and is certified lead-free under NSF/ANSI 372. Now we just need fluoride certification to match the claims.
Full Video: https://youtu.be/-ygKsxMBMCQ?si=snMuyouyX7zjGFte
The Berkey Phoenix finally has NSF certification — but only for chlorine and taste/odor reduction. So what does that actually mean for your water? Here’s the part most people miss.
Full Video: https://youtu.be/-ygKsxMBMCQ?si=snMuyouyX7zjGFte
05/31/2026
The Afina Shower Head is a shower filter that claims to target “chlorine, heavy metals, and hard water”. It uses a KDF-55 filter cartridge and is claimed to leave hair and skin “feeling softer, smoother, and refreshed after every shower”.
We tested this filter in real world conditions with chlorinated water in Colorado. The main focus of our testing was to see what it removed, especially looking at its ability to reduce disinfectant byproducts, chlorine, and hardness minerals. We also analyzed its flow rate, design quality, and other factors contributing to its overall value.
You can see how this filter performed across these testing categories in the table below.
Afina Shower Head Review (Unbiased, Unsponsored Analysis) We lab tested the Afina Shower Head in 2026. It reduced chlorine by nearly 99% but didn't touch hardness or DBPs. See our full scoring data and verdict.
Black Berkey replacement elements became hard to find nationwide after EPA action against a distributor facility in Colorado. The shutdown left a lot of Berkey users with questions about what comes next.
Full Video: https://www.youtube.com/watch?v=-ygKsxMBMCQ
The Culligan ZeroWater pitcher stands out for strong contaminant reduction and an affordable starting price. But the demineralized water and higher cost per gallon may not be for everyone.
Full Video: https://youtu.be/-ygKsxMBMCQ?si=snMuyouyX7zjGFte
The Aquatru Carafe checks almost every box 👀
Better contaminant reduction, real certifications, glass storage, easy maintenance, and no plumbing needed.
Just keep in mind — RO water removes minerals too.
Full Video: https://youtu.be/-ygKsxMBMCQ?si=mq9Ht_MU_fQILLK5
This filter removed 100% of every health-related contaminant found in my baseline test. 👀
That includes fluoride, uranium, chlorine, metals, minerals, and more.
Full Video: https://youtu.be/-ygKsxMBMCQ?si=gQIqIFdT27sYTiac
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