Water Filter Silver Infused Replacement for Berkey® BB9-2® Black Carbon Block Filters System,Compatible with Berkey® Gravity Countertop Purification Elements,Pack of 4

Very good. I was truly surprised. We have very heavy well water with so much iron that I have to use a product called iron out to keep it from clogging things up. These water filters work so well that you can't taste any of the iron in the water. Add to that the fact that they're half the price of Berkey water filters, these are a winner! What I haven't done is run the water tests on it, but I will do that. I'll even do the red dye test and report back!

Well packaged, easy-to-use, and I could tell a better tasting water. Good product well made.

High quality filters, makes water taste good.

Works with a Berkey and less cost

The one star is the product arrived. These filters are not filters. After fill and drain several times the water PPM tested much higher than the source. The meter and test strips both showed things add to the water not filtered out. I will not purchase these filters again. What a Shame .

I really like my water filter and use it daily.

Each of the four filters passed the red dye test. It’s a test where red food color dye is added to the top chamber to test if the water going into the bottom chamber is crystal clear. If no red color passes through then the filters are working properly. I tried to get good photos of the process. Lighting wasn’t optimal so just trust me when I say the water passed the test. Water tastes good after priming each filter using the original Berkey priming nozzle, and then running a full 2.5 gallon cycle through the filters. Would be a bonus if a replacement priming nozzle was included in this kit but I’m happy with what I got.

I was unable to find the "Berkey Black" filters for my system, so I wrote their customer service. They wrote back saying they were out of stock and gave me the customer service of the filter manufacturer. I thought they should be in touch with their own filter supplier instead of forcing their customers to deal with figuring it out. Luckily I found these WAY CHEAPER filters on Amazon, and they appear to be the same carbon-type filters as Berkey sells. They passed the red dye test, and that is the only test I know I can perform at home to see how fine the filter works. They took the bad taste out of my water just like the exorbitantly expensive ones from Berkey did, too.

Bon produit

great stuff

They seem to be working very well