Lincoln Service Parts 1 › Lincoln Electric 9SM18790 SWITCH LEAD FILTER ASBLY M18790 Lincoln Electric 9SM18790 SWITCH LEAD FILTER ASBLY M18790 Sale Price: $387.63 Original Price: $445.77 SWITCH LEAD FILTER ASBLY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! SWITCH LEAD FILTER ASBLY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1