Single Tube Holder Kit, 7-10 x 110mm Back Catalog number: 800259 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 801935 Charcoal Tube, Coconut Shell, Standard, 50/100mg, 6 x 70mm (Packg of 50) Price on request 200524 Tube Holder Tubing, 3/16" ID x 1/16" W (10 ft) Price on request 800064 Tube Holder Housing End, 5/8", for 7-10mm Price on request