Photographers Formulary carries alot of the developers (eg, rodinal, dektol) & other darkroom chemicals currently marketed by Kodak, Agfa & other companies that frequently drop products many of us become reliant upon. And their TF-4 fixer doesn't require a stop bath or hypo clearing. Buy from them & similiar companies (eg, Bostick & Sullivan), and you help guarantee sources for your darkroom supplies.