Lincoln Service Parts 1 › Lincoln Electric 9SM21321-16 AIR CLEANER & BRACKET ASBLY M21321-16 Lincoln Electric 9SM21321-16 AIR CLEANER & BRACKET ASBLY M21321-16 Sale Price: $255.90 Original Price: $294.29 AIR CLEANER & BRACKET ASBLY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! AIR CLEANER & BRACKET ASBLY PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1