WHEATON W239298 Bottle Cap, 20-400, Shinetek Instruments Research Institute (CAT#: STEM-L-5750-LGZ)

Three choices of black phenolic resin screw cap, white polypropylene screw cap or urea-formaldehyde resin screw cap.
A PTFE-coated 14B rubber cover gasket provides the best internal seal.
PTFE-coated silicone covers are used for storage of volatile solvents, sensitive compounds and corrosive chemicals.
The top opening cap allows liquid handling with a syringe using a PTFE-coated silicone cap gasket.
The cut-out PTFE-coated silicone cover pad allows for easy piercing.
Autoclavable/sterilizable.

Lid Specification: 20-400
Lid Type: Top Closed
Lid Material: black phenolic resin
Lid gasket: 14B rubber gasket
Autoclavable: allowed
Package Quantity: 144

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