8130 - durham tubes for coliform bacteria detection, 100 pcs. - for gas detection reaction in microbiological cultures - inserted upside down into a test tube with culture medium material: glass dimensions (LxW): 40mm x 8mm (Made in Germany)
9080 - test tubes, 100 pieces - excellent thermal shock resistance - suitable for heating, mixing, and storage material: DURAN glass dimensions: 16mm x 160mm, without rim (Made in Germany)