The Resideo VR8215S1503 is a standard opening direct ignition gas valve intended for HVAC systems that require precise control over gas flow. This valve, which operates on a 24 VAC power source at 50/60 Hz, is suited for single-stage applications. It provides consistent performance across a wide temperature range, from -40°F to 175°F, making it suited for a variety of climatic circums... https://www.partshnc.com/vr8215s1503-resideo-directignition12-gasvlv35-wc