Sorbent Tube, Silica Gel, treated w/sulfuric acid, 7 x 70-mm size, 2 sections, 200/100 mg sorbent, 20/40 mesh 226-10-06

Sorbent Tube, Silica Gel, treated w/sulfuric acid, 7 x 70-mm size, 2 sections, 200/100 mg sorbent, 20/40 mesh 226-10-06