The Parweld Long Back Cap Welding 57Y02 is a genuine, brand new welding tool. Back Cap For ET9, ET20, WP9, WP20, WP25 A Parweld Long Back Cap is a TIG welding torch consumable that screws into the back of a torch head to secure the tungsten electrode and seal the torch from air. Available in sizes for WP9/WP20 (41V24) or WP17/18/26 (57Y02) torches, it allows the use of full-length tungsten electrodes, offering better access to confined spaces than short caps.
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