Lincoln Service Parts 2 › Lincoln Electric 9SS31201 RECTANGULAR TUBING INSERT S31201 Lincoln Electric 9SS31201 RECTANGULAR TUBING INSERT S31201 Sale Price: $3.30 Original Price: $3.80 RECTANGULAR TUBING INSERT PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! RECTANGULAR TUBING INSERT PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1