Sorbent Tube, Firebrick treated w/sulfuric acid, 7 x 70-mm size, 1 section, 300 mg sorbent, 45/60 mesh 226-42-02

Sorbent Tube, Firebrick treated w/sulfuric acid, 7 x 70-mm size, 1 section, 300 mg sorbent, 45/60 mesh 226-42-02