Now there's a safe, economical way to cap and recap blood collection tubes and disposable glass culture tubes, regardless of manufacturer. Uni-Flex® Safety Caps are available for a wide range of biomedical and industrial applications. The Uni-Flex® Safety Cap liquid tight seal ensures sample integrity and prevents spillage of serum samples. Uni-Flex® Safety Caps protect your laboratory staff from the aerosols of highly infectious organisms such as TB and the HTLV-III virus.

These 64 Well "Reversible" Micro Tube Racks are designed so that one side of the rack accommodates 0.5ml microcentrifuge tubes. The reverse side holds 1.5ml to 2.0ml microcentrifuge tubes and screw cap microcentrifuge tubes.