100mm 4-hole cell holder Back Catalog number: 10104 Availability: In the manufacturer's stock Price on request - + Recommended E2100-E myVolt™ Mini power supply, 230V 6 912,00 Kč FILTER-520 Filter 520nm for DEL-100 3 400,00 Kč MW12 Phosphate handy photometer MW12 Price on request