British Berkefeld 7" Ultra Sterasyl Ceramic Gravity Filter Cartridge, 2 Pack, Reduces Contaminants, Suitable for All Gravity Cans, Improves Taste & Odour, NSF Certified Candle Element

I installed four of these filters in my Big Berkey 2.25 gallon unit and they work well. I have not tested tested the claims made of removal of contaminants but, I was pleased to see they were NSF certified. The taste of the water (subjective) is clean but flat. According to several forum posts: "taste and mouthfeel in water come largely from total dissolved solids (TDS), especially minerals like calcium, magnesium, sodium, and bicarbonate. When TDS is very low, and both chlorine and minerals are reduced, the remaining water can seem extremely clean but also characterless or flat." In short: I may reach out to the company and explain my situation and see what they recommend. Most say to add food‑grade mineral drops or a pinch of a balanced mineral salt to make it more palatable. Despite the flat taste, I am happy with the product and functionality and would highly recommended these as an alternative to the Berkey charcoal filters. Update: The British Berkfeld website FAQ states the following "Your water's mineral content will depend on where you live." It's likely that my local water provider is the root cause of my situation. We have frequent boil water advisories so I am not surprised to learn this.

My husband & I have had the Big Berkey system for over a decade. We've always used the black charcoal filters and while we had no issues for years, lately, perhaps because we're now a family of 4, they kept failing. I had grown beyond tired of constantly scrubbing the filters & repriming only to have them only filter down about 25% of the way, so I was very hopeful when I stumbled upon these compatible filters. The first 2 passes were extremely slow, as expected, but after that, they filter at lightning speed compared to my old Berkey filters. I can't confirm the filtering quality specifically since I haven't had it tested, but the water tastes great and I trust the certifications behind it. I wish we'd found these years ago so we could have avoided drinking bottled water while waiting for our old filters to think about working.

Use these as a replacement for the original carbon filters in my travel berkey, and can say that I won’t be going back to the originals after these. After the royal berkey certification controversy I decided to find new replacements. I spent far too long researching and watching/reading lab test reviews. My gut sense brought me to these. While not very popular in the US, after doing research you may find that Royal Berkefeld is the original inventor of these types of filters and holds more filter certifications than pretty much any filter maker. They are backed history, science/certifications, and a seemingly strong customer base in other countries. While I couldn’t perform any lab testing, I feel relatively confident in there filtering ability and can say that the taste is quite good when filtering Atlanta city water. When first using, expect SLOW filtering, hours. But after 3-4 days of use they became fully saturated and the flow was on par with other filters I’ve used. They also let you register them online. Very Satisfied. Good price too.

I like them a lot, it's easy to see when they need to be rinsed. Water tastes clean, I'm on my second pair and will continue to purchase.

These work absolutely fine. So much better than the black filters. People have complained in the other reviews that they don't work well with attaching other filters underneath. You're not supposed to do that. If you look at the website, these are to act alone, you're not to attach the other ones to it. These filter out the heavy metals. You don't need extra filters to do that. There are cheaper versions on Amazon, but they appear to be made in China, so I would not trust their ability to filter out stuff. These are made in Britain. These were thoroughly tested. I talked to a representative. And you can remove these once a month or so if they stop filtering all the way down to the bottom. You can use a clean sponge and wash them off with water to get rid of the lime scale and this will extend the life.

Bought my berkey during covid and this is my third ceramic filter refill so about every 18 months at a gallon a day or so. Fast shipping and as described original product and boxing. Easy to install just unscrew old take out and screw in new one comes w fresh rubber washer that goes inside to replace prevent leakage. Takes a minute for gravity fed water to start dripping but working like a charm. I have the 1.5 gallon stainless steel Berkey and thoroughly enjoy it about 18” high and lightweight for travel. My sons family has the 2.5 Big Berkey at his house and he uses the carbon filters. Highly recommend this water system worth the money. 💰

Smaller than the original one

I have to admit, I was nervous at first. They did not seem to work, so I got frustrated and went to bed. I the morning, the waterhad finally filled the lower compartment. The next day, I refilled it again, still slow, but it worked. Since then. It's still slower than my old filters, but the water is great! I can deal with the speed now. I'm sure it will get better over time.

goed product met erkende testen op zuivering water

Produits Berkefeld conforme. Qualité et efficacité.

Parfait et rapide

Like to have spares ,they always come in handy when needed,and yep!! very efficient .

tres bon produit