Package of 50 Cover Plates, diameter 33mm Back Catalog number: 435028 Manufacturer: HYDRO-BIOS Availability: In the manufacturer's stock Price on request - + Recommended 438025-001 Repair Kit for Net Bucket No. 438 025, Price on request 438050 Plankton Net for quantitative collection with cowl Price on request 435090 Plunger Sampling Pipette acc. to Hensen, capacity Price on request