Fuel source regulator + pressure gauge. I see now the regulator has a pressure gauge port. Good thing I need the plug for elsewhere in the system.
12V DC (normally closed) solenoid valve rated for 145 psgi. This will exist behind the fuel source regulator set at ~60psi, so I'm not sure what the pressure in this part of the system will be. There are two emergency shutoff valves, one from the fuel source, and another to contain the accumulator's contents.
Unfortunately I got the wrong adapter to connect this portion of the system to the accumulator, need a 1/2" to 1/4" reducer. I understand Center Hardware And Supply Co. in SF has fittings, maybe I can avoid shipping charges since I just need a few more pieces.
My last, outstanding question is what kind of fitting/adapter I'm going to need in order to connect the high pressure regulator to the fuel source. I'm assuming I can use one of these, however I'm not sure what size M-NPT it has.