Blue anodized aluminum blocks hold tubes upright and promote conduction of heat or cold from the Temp-Zone area on selected models of Purifier Cell Logic Biosafety Cabinets to help maintain sample temperature. Rack holds 12 conical 15 mL tubes

Blue anodized aluminum blocks hold tubes upright and promote conduction of heat or cold from the Temp-Zone area on selected models of Purifier Cell Logic Biosafety Cabinets to help maintain sample temperature. Rack holds 12 round 15 mL tubes