This is the brake fluid reservoir and master cylinder connection hose, goes between the master cylinder and the steel line that goes up to the reservoir and also connects the reservoir to the metal line going to the master cylinder. this is 8mm ID and is designed to hold up to brake fluid. Standard hose will deteriorate in brake fluid. This is sold by the foot.
California Prop 65 Warning: Cancer and Reproductive Harm – www.P65Warnings.ca.gov