Lincoln Service Parts 2 › Lincoln Electric 9SS28186-16 SINGLE - DIRECTION AIR VALVE S28186-16 Lincoln Electric 9SS28186-16 SINGLE - DIRECTION AIR VALVE S28186-16 Sale Price: $58.30 Original Price: $67.04 SINGLE - DIRECTION AIR VALVE PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! SINGLE - DIRECTION AIR VALVE PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1