Set of 10 Spare Dilution Bottles 250ml Back Catalog number: 435098 Manufacturer: HYDRO-BIOS Availability: In the manufacturer's stock Price on request - + Recommended 435011 Counting Chamber for zooplankton, volume approx. 2 Price on request 435028 Package of 50 Cover Plates, diameter 33mm Price on request 438030-001 Spare Net Bag for Plankton Net No. 438 030 Price on request