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 435028 Package of 50 Cover Plates, diameter 33mm Price on request 438001 Surface Plankton Net acc. to Apstein Price on request 435094 Plunger Sampling Pipette acc. to Hensen, capacity Price on request