Surcharge for mesh size < 55µ for nets 438 030, 43 Back Catalog number: 438061 Manufacturer: HYDRO-BIOS Availability: In the manufacturer's stock Price on request - + Recommended 438055 Spare Net Bucket, for Plankton Nets No. 438030 / 4 Price on request 435015 Plankton Chamber acc. to Kolkwitz, capacity 0.5ml Price on request 435035 Package of 250 Base Plates, diameter 27.5mm Price on request