Folsom's Plankton Sample Divider Back Catalog number: 435100 Manufacturer: HYDRO-BIOS Availability: In the manufacturer's stock Price on request - + Recommended 435011A Counting Chamber for zooplankton, dimensions 80 x Price on request 438020 Plankton Net for quantitative collection with cowl Price on request 435035 Package of 250 Base Plates, diameter 27.5mm Price on request