Ideal for bacteriology and microbiology.  These dishes are manufactured using 100% virgin, high molecular crystal clear polystyrene for distortion-free viewing and optimum optical clarity.

LAB-136C:

• Lid & Base: Standard Conventional
• "Sliding" (No stacking ring on lid for high speed operation)

LAB-136:

• Lid: Vents, Inside Ribs
• Base: Outside Ribs
• "STARDISHTM Semi-Stacking" (Bevelled angle stacking ring for stability)

LAB-029B:

• Lid: Vents, No ribs, No lip
• Base: 4-Sections with "ISO-PLATER" FROSTMARK "STARDISHTM Semi-Stacking" (Bevelled angle stacking ring for stability)

LAB-029:

• Lid: Vents, No ribs, Lip on the skirt
• Base: Inside Ribs, and "ISO-PLATER" FROSTMARK "STARDISHTM Semi-Nesting" (Nesting recession on lid has a smooth bevelled angle for high speed operation)

All Petri dishes are sterilized according to USP XXVI procedures.