Fisherbrand™ PTFE Watch Glasses manufactured by Thermo Fisher Scientific are molded from PTFE resin with machine finish for smooth surface. Fisherbrand™ PTFE Watch Glasses can be used as beaker covers for Fisherbrand PTFE Beakers.
Specification
Interior Finish: Smooth Material: PTFE Temperature Range (English): Cryogenic to 500°F Temperature Range (Metric): Cryogenic to 260°C Diameter (Metric): 5 cm