Description
The BASO Gas Products Y90AA-4209 Pilot Orifice is a gas metering component used with pilot burner assemblies. This orifice manages the supply of liquid propane or natural gas by allowing a controlled amount of fuel to pass toward the burner for ignition. It operates through a calibrated passage that maintains the required gas flow within the assembly. The component is secured in compatible gas-fired equipment and HVAC systems during servicing or part replacement. It has a 0.009″ orifice size and 1/4″ compression coupling to match specified system requirements.
