Lincoln Service Parts 1 › Lincoln Electric 9SM27255 OUTLET GUARD, 5HP SILENCER M27255 Lincoln Electric 9SM27255 OUTLET GUARD, 5HP SILENCER M27255 Sale Price: $286.77 Original Price: $329.78 OUTLET GUARD, 5HP SILENCER PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! OUTLET GUARD, 5HP SILENCER PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1