Hello,
I replaced the bradley cole cartridge in my bathtub(BR-1), I had to replace it because when you pulled the handle the whole handle came off along with the gray nozzle part in the cartridge. When I replaced the cartridge the same thing is happening. Im not sure if I did something wrong?

Hi tonsue and welcome to The Plumbing Page at ANHD.com.
There should be a clip that secures the cartridge in the valve body that's missing. Order one from Bradley. Good luck, Tom