Tube Holder Dual Variable Flow, only Back Catalog number: 800073 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 200113-10 Tube Holder Housing, 7-10 x 110mm, 5/8", L240 (pkg of 10) Price on request 811-9903-20 Charcoal Tube, Coconut Shell, Jumbo, 200/800mg, 10x110mm, with end caps, 20Pack Price on request 200112 Tube Holder Housing, 7-10 x 150mm, 5/8", L255 Price on request