its not a bypass hose its an emisison hose. if you ask for bypass hose you are going to get heater hose and it wont stand up to the oil that breathes through that line. tell your local parts house you want power steering return hose, i think its 1/2 ID but im not for sure. we (napa) dont make the hard plastic part of the line but it doesnt need to be hard line its just a breather. just make sure you get the right stuff or it will fall apart.