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 438020 Plankton Net for quantitative collection with cowl Price on request 435091 Plunger Sampling Pipette acc. to Hensen, capacity Price on request 435011 Counting Chamber for zooplankton, volume approx. 2 Price on request