No additive, silicone coated tubes.  Laboratory procedures requiring serum-general chemistry and serology procedures.  Sterile tube interior.

No additive, silicone coated tubes.  Laboratory procedures requiring serum-general chemistry and serology procedures.  Sterile tube interior.

No additive, silicone coated tubes.  Laboratory procedures requiring serum-general chemistry and serology procedures.  Sterile tube interior.

No additive, silicone coated tubes.  Laboratory procedures requiring serum-general chemistry and serology procedures.  Sterile tube interior.

No additive, silicone coated tubes.  Laboratory procedures requiring serum-general chemistry and serology procedures.  Sterile tube interior.

No additive, silicone coated tubes.  Laboratory procedures requiring serum-general chemistry and serology procedures.  Sterile tube interior.

No additive, silicone coated tubes.  Laboratory procedures requiring serum-general chemistry and serology procedures.  Sterile tube interior.

Gel placement for improved performance and more sample yield. Laboratory procedures requiring serum with a positive gel barrier between blood cells and serum-general chemistry, serology and toxicology procedures. TDM compatible. Can be used with both angle-had and horizontal-head centrifuges. Sterile tube interior.

Gel placement for improved performance and more sample yield. Laboratory procedures requiring serum with a positive gel barrier between blood cells and serum-general chemistry, serology and toxicology procedures. TDM compatible. Can be used with both angle-had and horizontal-head centrifuges. Sterile tube interior.

Gel placement for improved performance and more sample yield. Laboratory procedures requiring serum with a positive gel barrier between blood cells and serum-general chemistry, serology and toxicology procedures. TDM compatible. Can be used with both angle-had and horizontal-head centrifuges. Sterile tube interior.