Tube Holder Kit, Deluxe (Single, Dual, Triple & Qu Back Catalog number: 800232 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9988-10 Sorbent Tube, Chromosorb-106, 10X150, 600/300, 10/ Price on request 800072 Tube Holder Single Variable Flow, only Price on request 811-9973-50 Sorbent Tube, XAD-2, 8X110, 100/50, 50/BX Price on request