How do you remove the cartridge from the shower faucet?

To remove the cartridge from a shower faucet, first, turn off the water supply to prevent any leaks. Next, remove the handle by loosening the screw, which is often hidden under a decorative cap. Once the handle is off, you may need to unscrew a retaining nut or clip to access the cartridge. Finally, gently pull the cartridge out of the faucet body, and replace or repair it as needed.