Plastic tubing is what it's called.

It should run from the motor over the strut, down past the battery, across the inside of the bumper and over to a canister in the driverside fender.

Cut off a 1-2" piece of that hose and go to the parts store. Ask where their rolls of hose are and likely it's around wiper size or smaller, find one that goes onto the hose kinda snugly. Get say 2 feet and find the other side.. fix it up and smile.