2pcs TIG Welding Torch Teflon Gasket Insulators 54N63 for Torch 17, 18 and 26 Premium quality TIG welding torch Teflon gasket insulators 54N63 for torch 17, 18 and 26 For setup with large diameter gas lens collet body You get Two (2) 54N63 gasket insulators at this price. We use U.S. Postal Service (USPS) as main carrier. Please provide a USPS deliverable address.