This tamper-proof gas appliance ball valve is made for appliances that use natural gas, manufactured mixed gases, liquefied petroleum, and LP gas-air mixtures. It comes with the following features: Made in Italy. Forged brass construction. Its connections are FIP x FIP. Double O-ring stem seal. Teflon seats. Larger port diameter. Red full lever handle the valve is Certified at 1/2 psi at the appliance. Certified at 5 psi for indoor piping systems. UL-Listed (Subject 258)