The Groen Z040809 Burner Jet 57 is a precision fuel metering orifice designed to regulate gas delivery and optimize combustion efficiency in commercial cooking equipment. Featuring a size-57 calibrated orifice, this metal burner jet works by channeling pressurized gas directly into the burner tube, controlling the volume and velocity of fuel to achieve the ideal air-to-gas ratio. By d... https://partsfe.ca/burner-jet-57-for-groen-part-z040809