This Gas lens & Collet kits fits all 17 & 26 series air cooled torches and 18 series water cooled torches, including the Lincoln PTA-17, PTA-18 and PTA-26 torches, Miller Diamondback DB17,DB18 and DB 26 torches, along with the Weld craft WP-17, WP-18 and WP-26 torches
TIG Alumina Nozzles Ceramic Shield Cup 10N47 7# Fit DB PTA SR WP 17 18 26 TIG Welding Torch 10pk