The Peterson Real Fyre (SPK-26) Pilot Kit is designed for use with Peterson Real Fyre Natural Gas Vented gas log sets. This pilot kit can be added to a natural gas match lit log set to add manual safety pilot control. To be used with 12-36-inch standard G4 burners. NOTE - before purchasing a pilot kit to add to your existing log set you must ensure that you have adequate space in your fireplace, per the manufacturer's guidelines.