The MiniSeal II sealer comes with adapters that can enable it to process deep well, shallow well, low profile deep well, filter, and assay plates that conform to the ANSI/SLAS standard format. MiniSeal II plate adaptors not currently in use are designed to stack on top of the unit. Because the MiniSeal II operates with high force and a 450 W heater, it can be used to seal almost any type of microplate. In the case of polypropylene plates, sealing times can be less than 3 seconds. Sealed plates can be automatically ejected. The MiniSeal II does not require a compressed air supply and has a footprint about the size of a sheet of A4 paper.