2001 elantra fuel pump regulator location?

I was told the fuel pressure regulator is in the gas tank of my 2001 elantra, however when I replaced the fuel pump&filter a few months back, I'll be darned if I seen anything like the part I just purchased. It has a hose connector on one end,and 'O' rings on the other, but no bolt holes. The fuel pump in my car is this plastic bucket about the size of a round ice cream container, and the fuel pump is centered inside the plastic fuel filter. It has springs that depress as you tighten cover. Where in the bleep does the new regulator go? They couldn't just make life easy and put it on the end of the fuel rail, at least it doesn't look like it goes there! Thanks!