Product review (5 stars): Very easy to put on. Water tastes nice and fresh.
Took less than 5 mins. Just unscrew the old filter (Rotate clockwise) until it falls out. Do not turn it over as it will contain water and spill if inverted. Align the arrows on the new filter and filter mount, rotate counter clockwise until it screws in place. Run about 2 gallons of water to remove the sediments. No need to shut off water or anything.