The Opentrons Deep Well Aluminum Block can be placed directly on the OT-2/Opentrons Flex deck or on the Opentrons Temperature Module. This block can hold deep well plates, e.g. NEST 96 Deepwell Plate 2 mL at constant temperature. The aluminum block holds temperatures between 4°C and 95°C when used with the Opentrons Temperature Module (GEN2).