or
Agilent Agilent J&W Db-Bac1 Ultra Inert Gc Column, 30 M, 0.53 Mm, 3.00 um - JW
Agilent Agilent J&W Db-Bac1 Ultra Inert Gc Column, 30 M, 0.32 Mm, 1.80 um - JW