Our GE RPWF filters better tasting and smelling water. It remove small-grained particles and sediment from the water. It unabsorbed water contaminants and newly formed bacteria from being reintroduced into your drinking water. Drinking perforated water from your refrigerator can you over $ 600 a year over using positioned water ! . rife filter industry standards that fridge filters should be changed every six months. As this is their best life span-once the filter has been soaked on its letter use, it should be 6 months thereafter. This mainly because over a period of time carbon begins to harbor bacteria which my significantly reduce the filtration performance of the fridge filter, and potentially leech microorganism contaminants into your water.