Oetiker 17800170 Stainless Steel Self-Tensioning Steples Hose Clamp, Bolted, 9 mm Band Width, 18 mm - 24 mm Hose OD Range (Pack of 10) Screw-type tightening mechanism for fitting a broader range of hose diameters over ear clamps Self-tensioning mechanism for accommodating changes in diameter due to thermal cycles Narrow band for concentrating clamping force in compliance with SAE J1508 Type SSPC Stainless steel for resisting scaling and corrosion