The H43 Series automatic pilot valves provide safe lighting and complete shutoff of pilot and main burner gas in the event that the flame heating the thermocouple is extinguished. A manual valve handle with Pilot, On, and Off positions allows operation of the valve without a thermostat. Applications include room heaters, wall furnaces, commercial cooking equipment, etc. They can be used with natural and LP gas up to 0.5 psi, and both 3/8" NPT and1/2" NPT sizes are available. Standard and high temperature models are available.