The Culligan D-40A replacement filter reduces extra-fine dirt, sand, sediment, silt, rust particles, and turbidity. The Culligan D-40A water filter removes greater than 97% of lead. The Culligan D-40A water filters reduce bad taste and odor, sediment, and asbestos. Fits in undersink water filter systems. The Culligan D-40A is recommended for use with city and well water supplies. The Culligan D-40A water filter is tested and certified by NSF International to NSF/ANSI Standard 42/53 in model US-600A and US-600 which means that the Culligan D-40A replacement filter has passed rigorous testing standards.
Note: Culligan has changed the model number of this filter from D-40 to D-40A due to a design change. The contaminant reduction remains the same. The D-40A has a flow restrictor which will reduce the flow rate more than the original D-40. The original D-40 is no longer being manufactured.
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