Tube Holder Kit, Quad Variable, 6 x 70mm Back Catalog number: 800231 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9902-20 Charcoal Tube, Coconut Shell, Large, 200/400mg, 8x Price on request 800254 Single Variable Flow Kit, 5 x 150mm [Kitagawa TWA Price on request 800258 Single Variable Flow Kit, 7 x 130mm [Dräger Long Price on request