Plankton Net for quantitative collection with cowl Back Catalog number: 438020 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 438030 Plankton Net for qualitative collection Price on request