With an ASME B40

Key Benefits OEM Compatibility: Guaranteed fit for specific Utica and Dunkirk boiler models

but they represent the same natural gas orifice

The hardware utilizes high-durability composite plastic dowels for the range stops and includes Tinnerman speed nuts with Allen-head screws for cover security

Sporlan 168303 BQC-AAA Cartridge With an ASME B40The Sporlan 168303 BQC AAA Cartridge is a field replaceable internal component engineered for Type BQ Balanced Port TEV bodies. As a veteran grade refrigerant flow control solution, this AAA sized red cartridge is designed to maintain precise superheat at the evaporator outlet, ensuring maximum heat transfer efficiency while preventing liquid slugging in the compressor. The balanced port design allows the BQC AAA to mitigate the effects of varying