Lincoln Service Parts 1 › Lincoln Electric 9SM29870 DIRTY AIR TUBESHEET,2 M29870 Lincoln Electric 9SM29870 DIRTY AIR TUBESHEET,2 M29870 Sale Price: $1,139.63 Original Price: $1,310.57 DIRTY AIR TUBESHEET,2 PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! DIRTY AIR TUBESHEET,2 PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1