Package of 250 Base Plates, diameter 27.5mm Back Catalog number: 435035 Manufacturer: HYDRO-BIOS Availability: In the manufacturer's stock Price on request - + Recommended 435023 Tubular Plankton Chamber, capacity 25ml Price on request 438060 Surcharge for mesh size < 55µ for nets 438 000, 43 Price on request 435090 Plunger Sampling Pipette acc. to Hensen, capacity Price on request