ProductsDehydrated mediaB12 Assay Medium B12 Assay Medium SKU: QB-42-0211 Unit: Each Brand: NUTRI-BACT B12 Assay Medium Other products from «Dehydrated media» Peptone Water 1%, indole free # QB-68-2102 Amies Transport Medium, liquid # QB-49-0055 Middlebrook 7H11 Agar w/LT # QB-1L-2976 Oxford Agar w/Supplements # QB-39-3546