The Techniweld 22-50 is a replacement MIG gun nozzle designed to direct shielding gas around the contact tip and weld area while protecting the front end of a compatible MIG gun.Product details Part number: 22-50 Nozzle bore: 1/2 in Outside diameter: 3/4 in Available quantities: 1 piece or 5 pieces SKU: MS2250 CompatibilityUse only with compatible MIG gun front-end components designed for the 22-50 nozzle. Confirm the gun model, diffuser and contact-tip system before ordering.Care and replacementReplace the nozzle if it is heavily spattered, distorted, cracked or no longer seats securely. Allow the gun to cool before removing or installing front-end components.What is includedTechniweld 22-50 MIG gun nozzles in the selected package quantity. Contact tip, diffuser, insulator and MIG gun are not included.