Package of 50 Cover Plates, diameter 33mm Back Catalog number: 435028 Manufacturer: HYDRO-BIOS Availability: In the manufacturer's stock Price on request - + Recommended 438010 Plankton Net for quantitative collections with cow Price on request 435100 Folsom's Plankton Sample Divider Price on request 435090 Plunger Sampling Pipette acc. to Hensen, capacity Price on request