Surcharge for mesh size < 55µ for nets 438 000, 43 Back Catalog number: 438060 Manufacturer: HYDRO-BIOS Availability: In the manufacturer's stock Price on request - + Recommended 438001-001 Spare Net Bag for Plankton Nets No. 438 001 Price on request 435010 Counting Chamber for zooplankton, volume approx. 9 Price on request 438001 Surface Plankton Net acc. to Apstein Price on request