AO Smith AO-US-Ro-4000 Carbon & Claryum® Replacement Filters AO-4000-Carbon

Part Description:

The AO-4000-Carbon is a replacement filter set for the AO Smith AO-US-RO-4000 reverse osmosis system. It includes carbon and Claryum® filters that reduce chlorine, lead, VOCs, and other contaminants to improve the safety, taste, and clarity of your drinking water.

Function & Importance:

• Carbon Filter: Reduces chlorine, bad tastes, and odors from your water.

• Claryum® Filter: Targets heavy metals (like lead and mercury), pharmaceuticals, VOCs, and other chemical contaminants.

• Prepares Water for RO Membrane: These filters handle the majority of contaminant removal before the water reaches the RO membrane.

• Improves Taste & Safety: Ensures cleaner, fresher-tasting water at the tap.

Common Signs of Issues:

• Chlorine Taste or Odor Returns: Indicates the carbon filter is exhausted.

• Bad or Metallic Taste: May signal the Claryum® filter needs replacing.

• Cloudy Water or Particles: Could be from clogged filters.

• Overdue Replacement: Filters typically last up to 6 months—replace sooner with heavy use or poor water quality.

Installation Tips:

• Turn Off Water Supply: Always shut off water before changing filters.

• Twist-and-Lock Design: Simply twist out old filters and twist in new ones—no tools needed.

• Flush After Installing: Run water for a few minutes to rinse new filters and clear any trapped air.

• Reset Filter Indicator: If your system has a light or timer, reset it after replacement.

Why It Matters:

The AO-4000-Carbon filter set is crucial to keeping your AO-US-RO-4000 system working effectively. These filters remove harmful contaminants and prepare your water for the RO membrane, ensuring clean, safe, and great-tasting water for your home. Regular replacement keeps the system running efficiently and protects your health.

Filter Replacement Overview Video

Download Owners Manual

Download Filter Replacement Manual