Gates Corporation 72841 "Power Grip" Shrink Clamp 1.5"/1-3/4" O.d.(Pack of 5) Cross Reference: SB41 Gates No.: 32941 Revolutionary PowerGrip SB clamps &quot;shrink to fit&quot;. Nominal Hose Inside Diameter:1-1/4&quot; Minimum Hose Outside Diameter: 1-1/2&quot;