Ideal-Tridon Flex-Gear 47 Series Stainless Steel 300 Constant Tension Worm Gear Hose Clamp, 10 SAE Size, Fits 3/8 - 5/8" Hose ID, 14 mm - 27 mm Hose OD Range (Pack of 10) Stainless steel band for resistance to scaling and corrosion Stainless steel screw resists corrosion Inner liner covers band serrations to help prevent hose damage Belleville spring construction provides constant tension for reduced leakage in changing temperatures