Surcharge for mesh size < 55µ for nets 438 030, 43 Back Catalog number: 438061 Manufacturer: HYDRO-BIOS Availability: In the manufacturer's stock Price on request - + Recommended 435012 Counting Chamber for zooplankton,volume approx. 70 Price on request 438060 Surcharge for mesh size < 55µ for nets 438 000, 43 Price on request 435021 Tubular Plankton Chamber, capacity 5ml Price on request