Is this an aftermarket or universal board

As a veteran HVACR technician

and P3RX-042G series

The kit contains burner orifices for various input rates

maintaining the safety certifications of Carrier

York 028-12224-000 O-Ring 320819-301 Is this an aftermarket orThe York 028 12224 000 O Ring is a critical sealing component engineered for high pressure HVACR applications, specifically within York chiller systems and industrial mechanical assemblies. Featuring a 6. 484 inch Inside Diameter (ID) and a 0. 139 inch thickness, this OEM York replacement part (also identified as S1 028 12224 000) is designed to fit precisely into machined grooves to prevent fluid and gas migration. Constructed from high performance