Tube Holder Kit, Deluxe (Single, Dual, Triple & Qu Back Catalog number: 800232 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9971-50 Sorbent Tube, Silica (H2SO2), 6X70, 150/75, 50/BX Price on request 811-9966-50 Sorbent Tube, Silica Gel, 6X70, 100/50, 50/BX Price on request 800063-10 Tube Holder Housing End, 1/2" for 5mm OD (Packg of Price on request