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 801935 Charcoal Tube, Coconut Shell, Standard, 50/100mg, Price on request 800251 Tube Holder Kit, Dual Variable Manifold (Includes Price on request 800258 Single Variable Flow Kit, 7 x 130mm [Dräger Long Price on request