Test tube holder Back Catalog number: 10501 Availability: In the manufacturer's stock Price on request - + Recommended 18204255 4-cell holder for 10mm squ.cuvette 2 990,00 Kč 18204276 Square Cvettes.Glass 5mm, set/2 pcs 550,00 Kč MI411-R pH and free & total photometer Mi411-R Price on request