Single Tube Holder Kit, 7-10 x 175mm Back Catalog number: 800261 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 800254 Single Variable Flow Kit, 5 x 150mm [Kitagawa TWA Price on request 811-9902-20 Charcoal Tube, Coconut Shell, Large, 200/400mg, 8x Price on request