3M Petrifilm Staph Express Count Plates 6490, 50 each/box

3M Petrifilm Staph Express Count Plates provide Staphylococcus aureus results. S. aureus appears as distinctive red-violet colonies. Other colonies have to be checked using the Staph express disk. PLEASE NOTE: This is a temperature sensitive item. Depending on your location, this item may require a delivery signature and incur overnight air freight charges.