First, turn off the cold water valve supply and turn on the faucet to release any pressure and remaining water.
Next, turn the filter to the right until it stops and remove the filter from the head of the system.
Remove the protective cap from the new replacement filter.
Insert the new filter into the system head and turn to the right until it locks into place.
Turn on the cold water valve and turn on the faucet. Let the water run for 5 minutes to flush the filter before use.