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 435015 Plankton Chamber acc. to Kolkwitz, capacity 0.5ml Price on request 438020 Plankton Net for quantitative collection with cowl Price on request 438055 Spare Net Bucket, for Plankton Nets No. 438030 / 4 Price on request