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 438001 Surface Plankton Net acc. to Apstein Price on request 435098 Set of 10 Spare Dilution Bottles 250ml Price on request 438050 Plankton Net for quantitative collection with cowl Price on request