Lomgacre sells them as well. HOWEVER I woudl not run one, they do not show minute changes in fuel pressure and are very slow to react if there is a proiblem. We had a fuel pressure in a car a couple of years back that never showed on the gauge. Removed the isolater and zip tied the gauge to the cowl and low and behold the car was loosing 5 lbs of fuel presssure going downtrack, was a clogged filter. The gauge never moved with the isolater hooked up. Just my BTW this was with the Autometer one. If you want to know what your fuel pressure is really doing I would not recommend using one.