Designed for precision and reliability, this ER4043 aluminum MIG welding wire from Washington Alloy is a top choice for welders seeking superior performance. With a diameter of .030 inches and a weight of 1 pound, this filler metal adheres to the AWS A5.10 specification, ensuring high-quality welds. The composition includes a balanced aluminum content with controlled levels of silicon, making it ideal for a variety of aluminum welding applications. Whether you're a professional or a hobbyist, this spool provides the necessary attributes to achieve strong and durable welds in your projects.