Lincoln K and KP Numbers › Lincoln Electric KP4216-1 O-RING KIT Lincoln Electric KP4216-1 O-RING KIT Sale Price: $26.08 Original Price: $29.21 O-RING KIT PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! O-RING KIT PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000