Retainer Top secures culture tubes loaded into Culture Tube Inserts 4573600, 4573700, and 4573800. One is included with each Culture Tube Insert 10-12 mm size only (4573600). Constructed of type 304 stainless steel. For use in Labconco Upper or Lower, Standard or Spindle Racks manufactured after October 2020.
Stainless steel Basket Inserts fit in Standard Open Racks and Spindle Racks.