These simple yet effective lids will assist in keeping airborne contaminates out of your samples. Work great with autosamplers or pipettes. The tubes and caps come attached and "racked" in a 25 position polypropylene rack.
- 1.6 mm thick, 50 durometer, cross cut silicone septa
- Tubes, Caps, & Rack are Autoclavable to 121°C for 30 minutes at 15 psi
- 50 mL Polypropylene Conical Centrifuge Tubes included with caps installed.