A.O. Smith RO Carbon Block Replacements for Stage 1 and 3 Carbon Block Under Sink Replacement Filter (Pack of- 2) Item #4143905 | Model #4AC16L30P The blade design reduces the

The blade design reduces the chances of splintering

Its multi-position installation allows for upflow

Variable speed X-Boost turbine delivers the power to spray unthinned paints and stains

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A.O. Smith RO Carbon Block Replacements for Stage 1 and 3 Carbon Block Under Sink Replacement Filter (Pack of- 2) Item #4143905 | Model #4AC16L30P The blade design reduces theGet clean, healthy water by reducing 90 contaminants including chlorine, chloramine, lead, pesticides, PFOA PFOS, cysts, microplastics, and more Replacement filter for the AO Smith Clean Water Reverse Osmosis System (AOS HERO CHR) Use only certified, genuine AO Smith replacement filters for continued contaminant removal and system performance