Counting Chamber for zooplankton, dimensions 80 x Back Catalog number: 435011B Manufacturer: HYDRO-BIOS Availability: In the manufacturer's stock Price on request - + Recommended 438001 Surface Plankton Net acc. to Apstein Price on request 435028 Package of 50 Cover Plates, diameter 33mm Price on request 438015 Spare Net Part for Plankton Nets No. 438 010 and 4 Price on request