Tube Holder Housing End, 5/8", for 7-10mm Back Catalog number: 800064 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9964-50 Sorbent Tube, Microlite, 8X110, 500mg, 50/BX Price on request 800075 Tube Holder Quad Variable Flow, only Price on request 811-9902-50 Charcoal Tube, Coconut Shell, Large, 200/400mg, 8x Price on request