Tube Holder Collar Clip, for 1/2" OD, 3/8" ID Tubi Back Catalog number: 800135 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9903-50 Charcoal Tube, Coconut Shell, Jumbo, 200/800mg, 10 Price on request 200115-10 Tube Holder Housing, 7 x 130mm, 5/8", L247 [Draege Price on request F-PRO-1218 Universal Tube Holder System - Instruction Manual Price on request