The outlet is the same post regulator pressure fed to the indoor range, furnace, and refrigerator, about 11 " water col. pressure.
If you buy or own a grill with a OEM integrated control valve with built in combination high-low regulator then you can convert it with a different combination control valve that has only an integrated low regulator. The youtube video I have linked to has a partial list of grills this conversion works on.
The cheapest one I know of is the Camco 57274 Control Valve with Quick Connect, then you combine this with a male-female quick connect cable and you are good to go.
Here is a link to the control valve on Amazon.com:
Here is a link to a youtube video documenting the conversion: