Polished Aluminum Fabricated Windshield Washer Fluid Reservoir Tank Replace your cheap, plastic factory windshield washer fluid tank with this polished aluminum unit! Tanks are fabricated from 6061-T6 aluminum and are polished to a mirror finish to add a little shine under the hood of your hot rod. Includes an aluminum cap, ball valve, (2) fittings, mounting bracket and stainless steel hardware (assembly and mounting). 29 fluid ounce capacity. The shape of the tank and location of the mounting bracket make for an easy install.