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Heathrow Scientific 4-Way Tube Rack HS29022D$30.29
Heathrow Scientific's 4-way rack features different wells on each side. This versatile rack can accomodate 0.5, 1.5, 2.0, 15 or 50 mL tubes depending on the side used. The racks my be linked together in a format the fits your sample needs.
Racks are manufactured from polypropylene and are autoclavable.