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 438040 Plankton Net for quantitative collection with cowl Price on request 435025 Combined Plate Chamber (Utermöhl-Chamber), set wit Price on request 435011 Counting Chamber for zooplankton, volume approx. 2 Price on request