Lincoln Service Parts 1 › Lincoln Electric 9SM21436 CARBON MONOXIDE WARNING DECAL M21436 Lincoln Electric 9SM21436 CARBON MONOXIDE WARNING DECAL M21436 Sale Price: $4.12 Original Price: $4.74 CARBON MONOXIDE WARNING DECAL PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! CARBON MONOXIDE WARNING DECAL PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1