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 800261 Single Tube Holder Kit, 7-10 x 175mm Price on request 200157 U-Tube replacement for P/N 800143 Price on request 800149 Single Tube Holder Kit, 6 x 70mm (Standard Charcoa Price on request