Labnet Carrier 1x50ml Conical For C0300-12 2 Pack. OpticsPlanet Inc is an Authorized US Distributor for Labnet Centrifuges. Labnet C0300-122 Carrier 1 x 50ml conical for C0300-12 is designed to work with: Labnet Z300 and Refrigerated Z300K Labnet Z323...