Surcharge for mesh size < 55µ for nets 438 000, 43 Back Catalog number: 438060 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 435011A Counting Chamber for zooplankton, dimensions 80 x Price on request 435021 Tubular Plankton Chamber, capacity 5ml Price on request