Tube holder plug for manifold Back Catalog number: 800229 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 200131 Impinger Holder, Double, Aluminum, GilAir/HFS Price on request 811-9903-50 Charcoal Tube, Coconut Shell, Jumbo, 200/800mg, 10x110mm, with end caps, 50Pack Price on request 103SD Sulphur Dioxide 1-60 ppm Gas Detector Tube, pk/10 Price on request