Surface Plankton Net acc. to Apstein Back Catalog number: 438001 Manufacturer: HYDRO-BIOS Availability: In the manufacturer's stock Price on request - + Recommended 435011 Counting Chamber for zooplankton, volume approx. 2 Price on request 435011A Counting Chamber for zooplankton, dimensions 80 x Price on request 435035 Package of 250 Base Plates, diameter 27.5mm Price on request