Dale -- I've already checked at auto parts stores, this fitting is not like any I have seen. On closer inspection, the lower PCV nipple/tube runs straight up thru the center of it to the TB boot, inside the main upper nipple. And the PCV nipple has a right-angle forward bend as well. Allyn -- I've posted a crude schematic drawing of it at: http://members.aol.com/wolfsbrg8v/fitting.gif Leo