Tube Holder Kit, Quad Variable (Includes 6x70mm, 7 Back Catalog number: 800249 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800062 Tube Holder Housing End, 1/2" for 6mm OD Price on request 200114-10 Tube Holder Housing, 7-10 x 175mm, 5/8", L265 (Pac Price on request 811-9982-50 Sorbent Tube, Porapak-P, 6X110, 100/50, 50/BX Price on request