This is exactly what I am using for my natural gas supply. I got them at Lowes Home Improvement store. (BernzOmatic Female QD #361435, $12.99 and 10' Hose w/QD #361426, $34.99) I got an extra female quick disconnect and put it on the "OUT" end of a low pressure (BBQ type) regulator to use on my propane tank. The QD that came with the 10' hose, I put on the end of 28' of 1/2" black iron pipe w/a shut off valve, directly from the meter. Now I can switch fuel supplies in a matter of seconds. I am running a 5000 watt, 10 HP Generac generator. So far, everything seems to work perfectly. I was a little concerned about having enough fuel after almost 40' to the regulator, so yesterday, I cranked up my house furnace, my gas fireplace, and my generator to see if it would still run correctly, and it did. My only other natural gas load is the water heater, but I don't think it was running. The chances of everything running at once is pretty slim, so I don't worry about it.