Package of 50 Cover Plates, diameter 33mm Back Catalog number: 435028 Manufacturer: HYDRO-BIOS Availability: In the manufacturer's stock Price on request - + Recommended 435090 Plunger Sampling Pipette acc. to Hensen, capacity Price on request 438001-001 Spare Net Bag for Plankton Nets No. 438 001 Price on request 438045 Spare Net Part for Plankton Nets No. 438 040 and 4 Price on request