WHEATON 224223-01 Aluminum Cover with Sealing Gasket, 20mm, Shinetek Instruments Research Institute (CAT#: STEM-L-4876-LGZ)

It is suitable for sealing chromatographic bottles, etc.
The top opening is suitable for piercing operations.

Applicable bottle mouth OD (mm): 20
Type: Disc with tear-off top
Gasket: PTFE/red rubber
Color: natural color
Inner packing (single): 100
PCS/Box: 1000

WHEATON 239201 Bottle Cap, 13-425, Shinetek Instruments Research Institute (CAT#-STEM-L-4987-LGZ)
WHEATON 224231-01 Aluminum Cover with Sealing Gasket, 11mm, Shinetek Instruments Research Institute (CAT#-STEM-L-4877-LGZ)
WHEATON 224231-05 Aluminum Cover with Sealing Gasket, 11mm, Shinetek Instruments Research Institute (CAT#-STEM-L-4878-LGZ)
WHEATON 224231-06 Aluminum Cover with Sealing Gasket, 11mm, Shinetek Instruments Research Institute (CAT#-STEM-L-4879-LGZ)
WHEATON 224231-07 Aluminum Cover with Sealing Gasket, 11mm, Shinetek Instruments Research Institute (CAT#-STEM-L-4880-LGZ)
WHEATON 224235-01 Aluminum Cover with Sealing Gasket, 11mm, Shinetek Instruments Research Institute (CAT#-STEM-L-4881-LGZ)