Heathrow Scientific* 81-Well Freezer Storage Racks

These racks fit in standard 5 ¼ in. square freezer modules and hold 1.5 - 2.0 ml microtubes and cryovials. Featuring molded grid lines on the lid, imprinted coordinates on the base, and a molded reference point on the lid, these are truly innovative racks. Available in assorted packs of one of each color.