Always verify your specific boiler model and series against the manufacturer's parts list

While this is a York S1-024-20043-700 OEM part

Can this board be used to replace a Carrier CES0110063-01

it may have internal resistance or mechanical fatigue and requires replacement

Watts R119-04J Air Reg R-410A Always verify your specific boilerThe Watts R119 04J is a high performance 1 2" NPT air pressure regulator engineered for industrial grade pneumatics requiring a compressed air pilot operated configuration. Built with a rugged zinc body and a balanced poppet design, this unit maintains a consistent downstream pressure even amidst fluctuating inlet supplies up to a 300 PSIG maximum. As a relieving type regulator, it utilizes a Buna N diaphragm and O rings to ensure quick response and