Counting Chamber for zooplankton, volume approx. 9 Back Catalog number: 435010 Manufacturer: HYDRO-BIOS Availability: In the manufacturer's stock Price on request - + Recommended 435035 Package of 250 Base Plates, diameter 27.5mm Price on request 435025 Combined Plate Chamber (Utermöhl-Chamber), set wit Price on request 435023 Tubular Plankton Chamber, capacity 25ml Price on request