Make eco-conscious darkroom prints with Flic Film's environmentally friendly Phenatol Green Paper Developer. The 1.3 lb package contains enough chemical powder to make up to 4 liters of paper developing solution. The stock solution may be kept for three months in a full, stoppered bottle, for one month in a stoppered, partially-full bottle, and for 24 hours in an open tray. Water dilutions can vary from 1:1 to 1:4 depending upon the desired contrast and tone, and the development times are the same as Kodak Dektol.