The replacement spring for manual torches K-3 and K4000 by Arcair is an essential component designed to ensure optimal performance in your welding tasks. Measuring 0.5 x 3.5 x 5.5 inches, this durable spring is crafted to meet the demands of professional welding applications. Manufactured in Mexico, it embodies the quality and reliability that Arcair is known for, making it a vital addition to your welding accessories and arc gouging tools. Whether you're a seasoned welder or just starting, this replacement spring will help maintain the efficiency and functionality of your manual torch.