Smart Pack 1 & 5 Micron Carbon Block Under-Sink Replacement Set | Pre & Post RO Filters
The Smart Pack Pre & Post Carbon Block RO Replacement Set is built to keep your reverse osmosis system doing what it does best: providing clean, great-tasting drinking water. By replacing the two carbon stages that support the RO filtration process, this filter set reduces chlorine, improves taste and odor, and protects your RO membrane for consistent performance and truly clean water.
- 5-micron pre-carbon filter reduces chlorine, chemical tastes, odors, and sediment that can impact membrane performance while the 5-micron rating allows for consistent flow.
- 1-micron post-carbon filter polishes taste and odor after membrane filtration, delivering clean, refreshing drinking water at the faucet.
- Fits standard under-sink reverse osmosis systems using 2.5″ × 10″ carbon filter housings.
- Compatible replacement for common RO carbon cartridges including Pentek US-1000, American Plumber WLCS-1000, Culligan SY-2000, SY-2300, SY-2500, SY-2650, SY-5197, US-1500, Ace Hardware 4065124 (48167 & 49640), Flotec LC1 & TO2, GE FXSLC, FXSVC, GNSL05, GNSL05CBL, GNSV25, GN5V25CBL, GNSV30, GNSV30CCC, GNSV30CWW, GXSL03, GXSL03C, GXSV10, GXSV10C, GXSV10R, GXUT03A, GXUT038, WS35X10026, W535X10028, Sears 34377 & 34375, Omnifilter housings that accept standard 2.5″ × 10″ filters, and any brand dual-stage drinking water system that uses standard 2.5″ × 10″ filters.
- Not compatible with systems that use proprietary or non-standard size filter housings.
iFilters replacement filter cartridges are designed to support consistent RO system performance without unnecessary complexity. Built with solid carbon block media, not loose granular activated carbon (GAC), these filters deliver more uniform chlorine reduction, release fewer carbon particles, and provide more reliable performance over time. With standard sizing for an easy fit, iFilters cartridges help protect your RO membrane and deliver clean, great-tasting drinking water you can count on every day.
- Carbon block (CTO).
- Pre-carbon + post-carbon.
- 5 micron (before RO membrane), 1 micron (post RO membrane).
- Under-sink reverse osmosis carbon filter replacements.
