The EWF2CBPA model water filter is a factory original manufacturefilter d by Electrolux. As an OEM, this filter has been designed using only the highest quality parts. This filter has been engineered to fit Electrolux refrigerators with the Pure Advantage Ice and Water Filtration System. In addition, this filter will also fit all the ICON side-by-side models. NSF International put this filter through strenuous tests to determine just how fit this filter was for consumer use. NSF International gave the EWF2CBPA model filter a passing grade for Standard 42 and 53. With such high marks from NSF, this filter will protect your water from a number of impurities, such as chlorine taste, chlorine odor, lead, particulate, turbidity, and other potentially harmful chemicals. This filter should be changed every six months to ensure optimal water purity and dispense rate.