Multi port lids are generally used in conjunction with flanged reaction vessels allowing the introduction of different types of apparatus.
These lids can have a variety of ports on them inlcluding ground glass joints for the use of screwthread adaptors or screwthread ports them selves can be added to eliminate the use of adaptors.
The lids are secured to the vessel via and clamp the type of which will be determined by the type and size of flange on the lid & vessel. Generally these come in two forms quick release or wire clip types.
In recent times our range of PTFE Multi port lids have been preferred as an alternative choice.