80 Well Microtube Rack Assorted-(ELS-RAC0916) offers a thoughtfully designed, durable resource for hands-on learning. 80 Well Microtube Rack Assorted. Rack to easily fill and transfer 80 tubes Hold 1.5. 2.0mL microtubes in a compact 5 x 16 array Popular fraction. collector. plate style Made of polypropylene Molded. in coordinates to aid organization Autoclavable Supplied in packs of 5.