HPS Stainless Steel T-Bolt Clamp 1.75" - 2.01" (45mm - 51mm) for 1.5" inch hose 100% Stainless Steel with 19mm band & Floating Bridge Clamp Effective Range: 1.75" - 2.01" (45mm - 51mm). Fits Hose with INSIDE DIAMETER 1.5" (38mm) OR hose/pipe with OUTSIDE diameter 1.85" - 1.93" (47mm - 49mm). Superior welded construction Meets or exceeds SAE Spec. J1508 for T-Bolt clamps REMARK: The size listed indicates the minimum and maximum inside diameter of the clamp. Please order t-bolt clamp according to the OUTSIDE DIAMETER of the hose!