Tube Holder Adapter, 3/16" to 1/4" Ends Back Catalog number: 200187 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 200112 Tube Holder Housing, 7-10 x 150mm, 5/8", L255 Price on request 800149 Single Tube Holder Kit, 6 x 70mm (Standard Charcoa Price on request 800139 Tube Holder Adapter for 1/2" Ends Price on request