Oetiker 15400037 Stainless Steel Hose Clamp with Insert, One Ear, Clamp ID Range 13.1 mm (Closed) - 15.3 mm (Open) (Pack of 100) Clamp ear is dimpled for increased clamp force Mechanical interlock for secure closure and better corrosion resistance than a spot-weld Thin-walled insert ring for near-uniform compression around the whole circumference of the clamp Suitable for applications involving soft or hard rubbers and plastics Stainless steel for resisting scaling and corrosion