Package of 50 Cover Plates, diameter 33mm Back Catalog number: 435028 Manufacturer: HYDRO-BIOS Availability: In the manufacturer's stock Price on request - + Recommended 435035 Package of 250 Base Plates, diameter 27.5mm Price on request 435094 Plunger Sampling Pipette acc. to Hensen, capacity Price on request 435011A Counting Chamber for zooplankton, dimensions 80 x Price on request