Bradford White Gas Valve 222-46181-01A vs 222-46181-01B

[Bobzillabob72]

Hello. Does anyone happen to know the difference other than the last letter? They look exactly the same but have been unable to verify if there's a difference. Thank you.

[HVAC_Marc]

It's generally a minor change in the valve. Maybe a structural change, some function or material, or maybe a nomenclature or supplier change.

why are you replacing your HWT control?

[Bobzillabob72]

Thanks for your reply.

A guy I know thinks his is bad. I have this B variety but his is an A. All the other data plate info is the same.

Thanks again.

[mhoy9]

Marc gave a perfect description. The letter will indicate a small change that has no effect on the function or fit of the part.

Thanks,

Mike Hoy
Technical Support
Bradford White Corporation