In the past, all propane regulators had a “mushroom” valve on top that controlled the flow of propane. This is similar to the one you likely have on your barbecue grill. Is there a difference in propane regulators?
Today, different propane regulators require different setups.
Is There a Difference in Propane Regulators?
Newer Models
If you have one of the newer models, you can connect it to a propane tank with a “quick disconnect” fitting. The safety advantages of quick disconnect fittings are many. For example, if there is an interruption in the supply of propane or the tank is accidentally struck by something and damaged, with a quick disconnect fitting there is no need to worry about propane getting into the home. Simply shut off the valve on top of the regulator and then remove it from its mount.
Read More: Top 9 Best 2 Stage (Dual Tank) RV LP Propane Regulators
Standard Models
A standard model propane regulator, on the other hand, requires a propane tank with a threaded fitting. When this is connected to a propane tank, make sure there is always an “O” ring in its groove to prevent the gas from escaping—this is important. With a standard model propane regulator, there are no quick disconnect fittings so removal of the propane regulator requires turning off the valve on top and actually taking it off its mounting bracket.
Propane tanks should not be stored indoors. They should be in an area that is well ventilated and not subject to extreme temperatures or weather conditions. As a propane tank loses pressure, it becomes heavier and more likely to fall over unless it is weighted down. Propane tanks must be inspected annually by a certified technician.
See More: Who Makes the Best Propane Regulator?

Hey, Naomi O’Colman here.
With years working at an auto repair shop in Texas and passionate about the auto industry. I want to share with my readers the best quality products through my well-researched reviews as well as fixing minor defects in your car.