ILFORD PQ UNIVERSAL DEVELOPER is a liquid concentrate dimezones/hydroquinone developer suitable for the dish/tray developing of all RC and FB black and white photographic papers. In addition PQ UNIVERSAL can be used to dish/tray process ILFORD and some other technical films. It is also suitable for dish/tray developing of general purpose sheet films when a fast working, high contrast developer is needed and a high degree of enlargement is not required. 1 Litre