These Aero-Seal Liner Marine Worm Gear Clamps protect soft silicone hose even in Marine environments. Extensions of the band itself form the integral liner covering the worm gear slots to protect the hose from extrusion & shear without shifting. There are no bumps or laminates or coverings that could deteriorate over time. Silicone hoses can last up to 10 years, and their clamps must be as durable. These clamps are 4-piece heavy duty Quadra-Lock construction in all stainless steel. They are available in 1/2", 9/16", & 5/8" band widths, and are used for Coolant, Fuel, Air Intake & Turbo Sleeves in Marine environments.