Lincoln Electric 9SS21400-30 S21400-30 RATING PLATE (STD FREQ) Sale Price: $44.70 Original Price: $51.41 RATING PLATE (STD FREQ) PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Quantity: Add To Cart Added! RATING PLATE (STD FREQ) PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1