The Black Diamond Dual Action Fluid Transfer Gun is a complete vehicle fluid transfer solution that draws in and pumps out liquid in a single stroke for faster, cleaner service. It provides an easy and safe way to transfer fluids with minimal contact, making it especially useful for messy or hard-to-handle media. Built with a rugged aluminum die cast head, a drop-resistant "V" style plunger handle, and a steel barrel with a premium powder coated finish. The capacity is 16 oz (500 ml) and it includes an 8' vinyl hose (4' with each valve). Use it with non-corrosive liquids only, and do not use it with water-based fluids or other corrosive media.