Lincoln K and KP Numbers › Lincoln Electric KP1981-2 FILTER PLATE SUPER VISIBILITY #9 SHADE Lincoln Electric KP1981-2 FILTER PLATE SUPER VISIBILITY #9 SHADE Sale Price: $5.52 Original Price: $6.18 FILTER PLATE SUPER VISIBILITY #9 SHADE PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000 Add To Cart Added! FILTER PLATE SUPER VISIBILITY #9 SHADE PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1.000