Weil McLain 560-528-998 LP Main Burner Orifice 1.3mm

The Weil McLain 560-528-998 LP Main Burner Orifice is a gas flow control component designed for propane fired heating equipment. Featuring a 1.3mm opening size, the orifice regulates the amount of LP gas delivered to the burner assembly for controlled combustion during operation. It is commonly installed in boilers, furnaces, and other gas heating applications where accurate fuel distribution is required. Used within HVAC systems, the burner orifice supports proper flame features by maintaining consistent gas flow between the supply line and burner assembly during heating cycles.