Listing is for a Bradford White 222-46181-01A water heater gas valve and thermostat control.  Valve is also under a White Rodgers 37C37U-724 part number.  Valve is set up for natural gas.  Valve has been removed from a working water heater that was replaced.  If you have any questions, feel free to ask.  Item will ship promptly using USPS, UPS, and FedEx services.