Lincoln Service Parts 2 › Lincoln Electric 9SS30229-38 STRAIGHT ADAPTOR 4MM OD TO 1/4NPT MALE S30229-38 Lincoln Electric 9SS30229-38 STRAIGHT ADAPTOR 4MM OD TO 1/4NPT MALE S30229-38 Sale Price: $13.60 Original Price: $15.64 STRAIGHT ADAPTOR 4MM OD TO 1/4NPT MALE PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1 Add To Cart Added! STRAIGHT ADAPTOR 4MM OD TO 1/4NPT MALE PURCHASE PRICE SHOWN IS FOR A QUANTITY OF 1