Can the Fluidmaster pro45b top half be changed out like a 400A?

[Mattb]

Hi all,

Basically what the subject asks. I am looking to swap out the top half of a pro45b fill vavle and was wondering if you can just move the ring and swap the top with another pro45b, like on 400A.

Thanks,

Matt

 

[Marlinman]

Yes you can.