Western Enterprises offers high-quality B Size Couplers designed specifically for acetylene and fuel gas applications. These left-hand male couplers are essential components in welding setups, ensuring a secure and reliable connection for your gas hoses. While utilizing these couplers, it's important to be aware of the potential exposure to lead, which is known to the State of California to cause birth defects or reproductive harm. For more information on safety, please visit www.P65Warnings.ca.gov. These couplers are a vital addition to your welding accessories, providing durability and performance in demanding environments.