If the regulator you are referring to looks like those posted by Marc, I have another suggestion for its replacement. I, like you, had to change this regulator on both of our rigs. When the regulator went out on the BH, nobody locally had one in stock and I had no time to wait for one to be shift. Out of desperation, and on the recommendation for a senior technician from our local propane company, I replaced this regulator with a high flow adjustable control valve rated from 0-30psi. This valve is used for those large outdoor propane cookers. That valve has been in use for the last two years with flawless performance. One of the advantages of this valve is it doesn’t have the internal rubber diaphragm that causes the OEM style to fail so I expect many years of service from this device.