Gas Lens Collet Compatible with Model 20 20F 20HP 20P 25 301251 301253 9 9F 9FVB 9HP 9P 9V 9VB CS310A WP-20 WP-20P WP-20V WP-25 WP-9 WP-9F WP-9FV WP-9V WP-R9F WP-R9FV Compatible with Series 20 25 9 A-125 W-200 W-225 W-250 W-280 W-310 W-375 For Maximum Electrode Diameter 0.04 in TIG Torch Application Large Diameter Gas Lens Type Gas Lens Collet Welding Processes TIG Welding (GTAW) Reference Number 13N21L For Use With 20 20V 22 23 25 9 9V