The Pilot Assembly 4021-737 Propane is designed for use in Heat N Glo, Heatilator, and Quadrafire fireplaces. It measures 7.68 x 4.8 x 1.85 inches and weighs 9.1 ounces, with a metal construction and a multicolor finish. This unit is an igniter type, specifically for gas fuel, and does not require batteries for operation. Manufactured in China, this assembly includes one unit in the package and is suitable for fireplace and stove replacement parts. Perfect for maintaining the functionality of your propane gas fireplace.