Set of 10 Spare Dilution Bottles 250ml Back Catalog number: 435098 Manufacturer: HYDRO-BIOS Availability: In the manufacturer's stock Price on request - + Recommended 435022 Tubular Plankton Chamber, capacity 10ml Price on request 435012 Counting Chamber for zooplankton,volume approx. 70 Price on request 435023 Tubular Plankton Chamber, capacity 25ml Price on request