Tube Holder Housing, 7-10 x 110mm, 5/8", L240 Back Catalog number: 200113 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9983-50 Sorbent Tube, Porapak-Q 6X110, 150/75, 50/BX Price on request 400253 Tube Holder, Clear Storage Box Price on request 811-9966-50 Sorbent Tube, Silica Gel, 6X70, 100/50, 50/BX Price on request