Step 1 – Replace The Shower Knob
First thing you need to do is pry out the knob cover. Next, use a screwdriver to remove the center screw which holds the knob.
The new shower handles come with a handle adapter which secures the handle. You need to fix the handle adapter in the slot and tighten it with a screw driver.
Once the handle adapter is attached, you need to slide the handle over the adapter making sure it fits over nicely.
Now that the handle fits snugly over the adapter, you need to secure it by means of an allen head screw which will make sure the handle stays fixed. You can fasten it with the allen wrench or hex key.