Lincoln Service Parts 1 › Lincoln Electric 9SM27650-A 6" DIAMETER PIPE COUPON M27650-A Lincoln Electric 9SM27650-A 6" DIAMETER PIPE COUPON M27650-A Sale Price: $52.69 Original Price: $60.59 6" DIAMETER PIPE COUPON PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! 6" DIAMETER PIPE COUPON PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1