Lincoln Service Parts 2 › Lincoln Electric 9SS23281-11 FILTER MAINTENANCE INDICATOR S23281-11 Lincoln Electric 9SS23281-11 FILTER MAINTENANCE INDICATOR S23281-11 Sale Price: $295.75 Original Price: $340.11 FILTER MAINTENANCE INDICATOR PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! FILTER MAINTENANCE INDICATOR PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1