Non-vacuum Clot Activator Tube is filled with clot activator and coated with micronised silica particles for clotting the blood rapidly. The Non-vacuum Clot Activator Tube comes with tight fitted red coloured cap and designed for testing of serum. The Non-vacuum Clot Activator Tube can provide enough and non-polluted serum specimen for clinical test. Non-vacuum Clot Activator Tube is available in various ranges like 13 X 75 mm, 13 X 100 mm and 16 X 100 mm.