Polystyrene dishes suitable for culturing microorganisms on 47 mm diameter membrane filters

Dishes are sterilized by gamma irradiation (50 x 11) or by EtO. Standard size 50 x 11 mm polystyrene dishes fit all commercially available aluminum block incubators. Dishes are available with or without 47 mm absorbent cellulose pad (0.85 ± 0.17 mm thick, absorbs 1.8-2.2 mL liquid).