Lincoln Service Parts 1 › Lincoln Electric 9SG4481-34 AIR FILTER COVER (PLASTIC) G4481-34 Lincoln Electric 9SG4481-34 AIR FILTER COVER (PLASTIC) G4481-34 Sale Price: $45.07 Original Price: $51.83 AIR FILTER COVER (PLASTIC) PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! AIR FILTER COVER (PLASTIC) PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1