The Maxitrol 325-5BL-3/4 3/4" Line Gas Regulator (2 PSI, 7–11" WC) is a reliable pressure control device designed to regulate gas flow in HVAC and heating systems. It maintains consistent downstream pressure for natural or propane gas, ensuring safe and efficient combustion. Commonly used in furnaces, boilers, and unit heaters, this regulator provides precise control, enhances system ... https://www.partshnc.com/325-5bl-3-4-maxitrol-3-4-line-regulator-2psi-7-1-watercolumn