Stauff CRA 325 ACT DP AS U W5 K 642012 Beta Clamp Kit, 25 mm Tube OD, Smooth Bore, 316 Stainless Steel, Polypropylene Cushion, Rail Mount TWT51660 PP Specific brands and series will Specific brands and series will recommend a specific replacement gauge when the more demanding specs of an industrial or utility gauge is not required Series IndestrucTABLE TOO(TM) Clamp Type Rail Mount Assembly Bore Style Smooth Clamp Material 316 Stainless Steel Clamp Material Finish Elastomer Clamp Type Rail Mount Assembly Cushion Material Polypropylene For Maximum Outside Diameter 25 mm For Number of Lines 1 Hardware Material 316 Stainless Steel Includes (1) Rail Nut