The AO-WH-PRE-RC2 whole house pre-filter replacement element is NSF Certified to NSF/ANSI 42 Drinking Water Treatment Units - Aesthetic Effects. The certification was originally issued in 2018 and is currently up to date as of May 2023.. Reduce the sediment in your faucets and prolong the life of appliances with this whole house sediment filter from A. O. Smith. It's ideal for 1-4 people.
Shop A.O. Smith Sediment and Particulate Whole House Replacement Filter (Pack of- 2) AO-WH-PRE-R2 in the Replacement Water Filters & Cartridges department at Lowes.com. Product Features Filter for use with: Whole House Sediment Filter (AO-WH-PREV or AO-WH-PRE). Longer lasting appliances - whole house filter system designed to reduce sediment from every tap. 35 micron filtration - reduces sediment smaller than the human eye can see. Use only certified, genuine A. O. Smith replacement filters for continued contaminant removal and system performance.