Safe-T-Fill® Capillary Blood Collection Tube Serum Tube Clot Activator Additive 10.8 X 46.6 mm 200 µL Red Attached Cap Plastic Tube

100% plastic tubes collect microliter volume capillary blood samples from finger and heel sticks

Blood samples are drawn into the microtube through capillary action, reducing hemolysis, tissue contamination, and re-draws; No "scooping" or "milking" required

Capillary straw and microtube are coated with a clotting activator (Red Cap) to facilitate clotting

Attached cap is color-coded to designate the type of additive that is in both the capillary tube and the microtube

Lot Number, Expiration Date, and fill lines are printed directly on the microtube

A complete end-to-end fill of the capillary straw accurately measures the stated fill volume

For serum determinations in chemistry

Available in a variety of sizes and draw volumes, with or without gel separator