Tube Holder Quad Variable Flow, only Back Catalog number: 800075 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 200115-10 Tube Holder Housing, 7 x 130mm, 5/8", L247 [Draege Price on request 801935 Charcoal Tube, Coconut Shell, Standard, 50/100mg, Price on request 200187 Tube Holder Adapter, 3/16" to 1/4" Ends Price on request