VWR® Microtube Storage Boxes Lab Safety they feature caps with silicone

they feature caps with silicone O-rings for a leakproof seal from -86°C to +121°C

non-graduated

Suitable for applications that require frequent replacement of the entire headgear assembly

including bleach

VWR® Microtube Storage Boxes Lab Safety they feature caps with siliconeThese durable, polypropylene boxes maintain their integrity under harsh freezer conditions and will not absorb water or degrade like cardboard storage boxes. A three point hinge and positive catch provide quick access to samples and keep them secure when box is closed. Boxes are available in seven colors. An alphanumeric grid on the lid aids in sample identification. Autoclavable to 121C (249. 8F). Racks for the chest freezers store up to nine boxes