Product review (3 stars): No instructions on box
No instructions on box, I thought this was a little weird not writing the 5 steps to installing the new filter and instead referring to their website.

Installing the filter cartridge
1 Fill the replacement cartridge with water from the tap
to allow for better flow from the dispenser immediately
after installation.
 2
Line up the arrow on the cartridge and the cartridge holder. Place
the top of the new cartridge up inside the holder.
Do not push it up into the holder.
3 Slowly turn it to the right until the filter
cartridge stops. DO NOT OVERTIGHTEN.
As you turn the cartridge, it will
automatically raise itself into position.
The cartridge will move about a  turn.
4 Run water from the dispenser for 1-1/2 gallons (about three
minutes) to clear the system and prevent sputtering.
5 Press and hold the RESET WATER FILTE