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 438010 Plankton Net for quantitative collections with cow Price on request 435010 Counting Chamber for zooplankton, volume approx. 9 Price on request