Folsom's Plankton Sample Divider Back Catalog number: 435100 Manufacturer: HYDRO-BIOS Availability: In the manufacturer's stock Price on request - + Recommended 5065M-310 Surface Catch Net Price on request 435028 Package of 50 Cover Plates, diameter 33mm Price on request 438001 Surface Plankton Net acc. to Apstein Price on request