Single Variable Flow Kit, 6 x 70mm (Standard Charc Back Catalog number: 800253 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800262 Single Tube Holder Kit, 7 x 130mm [Draeger Long T Price on request 811-9983-50 Sorbent Tube, Porapak-Q 6X110, 150/75, 50/BX Price on request 800136 Tube Holder Collar Clip, for 5/8" OD, 1/2" ID Tubi Price on request