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 438020 Plankton Net for quantitative collection with cowl Price on request 435028 Package of 50 Cover Plates, diameter 33mm Price on request 435016 Plankton Chamber acc. to Kolkwitz, capacity 1.0ml Price on request