Package of 50 Cover Plates, diameter 33mm Back Catalog number: 435028 Manufacturer: HYDRO-BIOS Availability: In the manufacturer's stock Price on request - + Recommended 435098 Set of 10 Spare Dilution Bottles 250ml Price on request 435094 Plunger Sampling Pipette acc. to Hensen, capacity Price on request 438030 Plankton Net for qualitative collection Price on request