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 438001 Surface Plankton Net acc. to Apstein Price on request 435021 Tubular Plankton Chamber, capacity 5ml Price on request 438025 Spare Net Bucket for Plankton Nets No. 438 001 / 4 Price on request