Excess flow, soft nose P.O.L. x 1/4 male pipe thread, in the event a hose is severed, this pol allows for protection, it interrupts the flow of gas from the tank.
Fuels used in liquefied propane gas appliances,and the products of combustion of such fuel,can expose you to chemicals including benzene,which is known to the State of California to cause cancer and cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
