100mmx15mm, 110mL, Polystyrene, Square, Petri Dish with Grid (500/Case)

Free from optical distortion and sterile. These dishes are ideal for phage typing, susceptibility testing, plate counts, and probe assays. Each 13mm grid is marked numerically in one direction and alphabetically in the other. This dish has four venting ribs into the underside of the lid to prevent condensation build-up.