Spare Net Bag for Plankton Nets No. 438 001 Back Catalog number: 438001-001 Manufacturer: HYDRO-BIOS Availability: In the manufacturer's stock Price on request - + Recommended 435011 Counting Chamber for zooplankton, volume approx. 2 Price on request 438055-001 Repair Set for Net Bucket No. 438 055 Price on request 438001 Surface Plankton Net acc. to Apstein Price on request