Replacement trigger switch for part 227798 for miller or M Style mig guns. M10, M15, M25. For use on many different Millermatic Mig Welders. This also fits Hobart h-10, h-14 guns found on the Hobart Handler 135, 140, 175, 180, 187, 210 and 210MVPThis will not work on the Blue Trigger M-100 and M-150 If you are not satisfied with you purchase you can request a return authorization number and ship the product back to us in its original packaging and in new condition, including packaging. Returns are subject to a 15% restocking fee. The return authorization number will need to accompany all returns. Return authorization number request must be requested within 3 days of receiving the product. This item ships through USPS Monday through Friday, excluding holidays. All shipments to Texas require 6.25% sales tax.