Each set consists of a Ø 50 mm or Ø 47 mm pad, impregnated with nutrient media, packed dry and sterile in a Petri dish, with a membrane filter. After filtration of the sample the membrane is placed in the dish and incubated. More types available on request.

• Simply prepared by the addition of 3,5 ml sterile, demineralised water
• Individually sterile packed
• Can be kept 18 to 24 months at room temperature, depending on the type