Kishu CharcoalRegular size for Pitchers. The finest form of activated charcoal. Fits in any pitcher. Made by Japanese artisans. The simple, green way to filter water.

I got this oak filter about 6 months ago and followed the directions for boiling it. I love the taste of the water. Its always in a full pitcher on my counter and is usually refilled every day. I boiled it again at 6 months. The taste is clean and pleasant. It's inexpensive, organic, easy to use and maintain with the promise of a long life. You really cannot beat the price, durability, safety and convenience.

I LOVE this item. It is incredibly easy to use and I kid you not, the water quality is insanely better. It tastes so smooth, pure and clean. Truly will never be without it now. Also, my coffee machine water filter was discontinued but now I can don’t need it with this gorgeous way to filter my water!! Anddd it’s eco friendly?? Come on. Perfect.

I bought both the washed and the unwashed versions. They are equally effective but I think I prefer the unwashed simply because they're a better value as far as cost. They make some of the cleanest tasting water I've ever had!Every now and then I throw them in a pot and boil them for about 10 minutes and refresh them. I do that more than they say you need to. I'm not sure if it makes any difference or not but it certainly hasn't hurt the effectiveness of them.

I have used these for several years. I like that they are not toxic, not plastic, easy to "re-charge" by boiling once a month, and are bio-degradable when they are done. I use these in a glass pitcher. We keep several of these pitchers in the fridge, and just alternate them. That way there is one filtering and one ready to drink. These definitely work! I can't stand our tap water without them. They last about 6 months with a monthly boil. You can see when they need a re-charge because they do not produce as many bubbles when you drop them in. Great product!

So happy I found these! My Britta pitcher had broken and I was pricing filters. I came across these and will never go back. I use4 of the broken sticks (equals 2 Regular sized ones) for a 1 gallon jar. It works great overnight. I then fill smaller glass bottles to make it easier to pour. We always have filtered water. I have very hard well water which tastes good, but creates buildup. I think this water is easier on our teeth and tastes as good or better than bottled water. I love that I can reuse these to help with odor when they are done filtering water. And then after that there is no plastic waste. It's a win-win! Buy them! You won't regret it.

Although I like the natural quality of this product and the concept of a plastic-free water filter, unfortunately, it is not very effective. It does filter the water but not as well as the standard Brita filter. Even after 24 hours, the water was better tasting but not as clean tasting as a Brita filter pitcher (the Brita filter was almost at the end of its life by the way...

Water tastes great. the down side is having to boil it monthly because I have it in my office so need to bring it home to do that. otherwise...GREAT product

I didn't want to buy a big water filter container because my fridge is small. This filter works great in my slim glass pitcher. It couldn't be easier to use. My 10 year old grandson commented on how good my water tastes.

As expected , love it

Smaller than I was expecting as only a few inches so useable only for personal water bottles but I have liked using it and the difference in taste to my water. Haven't needed to refresh by boiling yet but anticipate it will work, no worries.