AO Smith 4.5x10 25 Micron Carbon Sediment Filter for Whole House – AO-WH-PREL-RC

Overview

Enhance your home’s filtration with the AO Smith 4.5x10 inch, 25 micron carbon sediment replacement cartridge. This genuine AO-WH-PREL-RC part is designed to work with the Whole House Filter System with Timer, delivering consistent performance across your home. Built for real-life use, it captures fine sediment that can cloud water and settle in fixtures, helping your taps, showers, and appliances benefit from steadier flow and cleaner water over time.

In typical daily use, you’ll notice the cartridge working behind the scenes—from the kitchen tap to the laundry room—quietly filtering out particulate matter. The 25 micron media targets particles that are often invisible to the eye, offering a tangible sense of sediment control without relying on guesswork. As with any filtration system, results can vary with water quality, but many homes experience smoother operation as sediments are better managed at the source.

Compatibility and installation

This replacement cartridge is designed for use with the AO-WH-PREL whole-house filter system. Regular replacement is recommended to maintain system effectiveness, and the process is straightforward enough for a quick at-home swap—no professional plumbing required. The 4.5" diameter and 10" length provide a generous capacity to support ongoing filtration for households with multiple taps.

Key benefits at a glance

• 25 micron filtration captures fine sediment particles that are hard to see
• Large capacity 4.5" x 10" filter fits typical family homes (4+ people)
• Designed for use with the AO-WH-PREL timer-enabled whole-house system
• Includes one replacement cartridge for easy upkeep
• No plumber needed for replacement, saving time and disruption
• Made with genuine AO Smith media to help sustain system performance

Practical usage and real-life scenarios

Visualize a kitchen where the water looks clearer as it pours from the tap, while the shower delivers a steadier, more refreshing stream. In everyday laundry and dishwashing, sediment control can help keep appliances running smoothly and reduce the buildup you might notice in screens and screens filters. This cartridge is designed to support consistent filtration across your home, potentially extending the life of connected appliances by reducing sediment exposure.

What to expect when you purchase

• Includes one replacement cartridge
• Simple at-home replacement with no tools required
• Recommended six-month replacement interval for ongoing performance
• Backed by genuine A. O. Smith filtration media and brand reliability