These 50×9 mm Petri dishes are ideal for culturing micro-organisms on either agar or broth based media.

• Petri dish with absorbent pad
• Accomodates 47 mm diameter membrane filter
• Made of polystyrene
• Stackable
• Sterile

Designed to accommodate 47 mm diameter membrane filters, these polystyrene dishes are stackable and feature squared-off edges on both the top and bottom to provide convenient grips for one-handed opening. The snug fitting top ensures that neither the absorbent pad nor the agar media will dry out during incubation. A frosted area on top of the lid permits labeling.