Edelbrock/Russell 620190 Red Anodized Aluminum -10AN Tube Seal Heater Hose End Hose clamp size is -10 AN Hose clamp style is worm gear Includes a hose clamp cover with a red anodized finish Hose clamp is made of stainless steel with a natural finish The worm gear hose clamp is made of stainless steel with a natural finish