Brass Compression Wall Plate Elbow is used to make a 90deg wall mounted connection between copper pipes. They require no special tools or soldering for installation, just tightened with a spanner. It creates a mechanical joint by compressing the ring onto the tube. It is designed for use in hot or cold water applications as well as heating and low pressure gas installations. The joint can be made on wet pipe work and can be dismantled and re-built.