Pitched-blade stirrer (downward, four impellers, 45°, for 500/1000 mL OptiMax reactors) Pitched-blade stirrer (upward, four impellers, 45°, for 500/1000 mL OptiMax reactors) Pitched-blade stirrer (downward, four impellers, 45°, for 250 mL OptiMax reactor) Pitched-blade stirrer (upward, four impellers, 45°, for 250 mL OptiMax reactor) Glass cover for 500/1000 mL reactor, 7 ports Glass cover for 250 mL reactor, 7 ports Glass vessel for two-piece 1000 mL reactor (without parts for bottom drain valve) Glass vessel for two-piece 500 mL reactor (without parts for bottom drain valve) 1000 mL glass reactor 500 mL glass reactor