Set of 2 racks to allow the use of 8x40mm 1mL vials in the i-Series. Each plate holds 84 vials for a total capacity of 168 vials per rack. The same type of rack must be uses in the L and R positions. Use 220-91521-06 for clear 1mL vials and 220-91521-07 for amber 1mL vials.