I found this site on the net today when looking for some bullk hypo. I have no idea of their customer service or reliabilty, but they have a pretty good selection of chemicals at very resonable prices. There are some photographic chemicals that they don't carry, but I thought I'd post this in case someone can't find what they are looking for at PF or Artcraft. I plan on ordering some hypo and sulfite, so I'll post how every thing goes as well as the quality of the product. The site is http://www.chemistrystore.com/