I just wanted to pass on some information. I just purchased a Berkey water purifying system and I love it. I have been doing my homework and after about 6 months I decided to go with the Berkey system. I bought the crown which is stainless steel and has the ability to purify up to 24,000 gallons of water. I also did my homework on where to buy one and decided to buy from Home. I found this site to be very informative and they were very helpful. If you have ever considered the berkey you should check out this site. I hope this helps.