The Honeywell VS8187A1351 Gas Valve Diaphragm is a new in box replacement part designed for central furnace systems. This 2-inch diameter gas valve is compatible with various models from brands such as ITT, including 53R, VS87A, B60Y, VS8187B, VS887A, 12R, and 60R. With a 750mV Tradeline feature, this high-quality gas valve diaphragm ensures efficient and reliable operation for your HVAC system.