Ao Smith 100187890 Powered Anode Rod Kit 19.69 Inches

Product Description

The AO SMITH 100187890 is a powered anode rod kit designed to protect water heater tanks from corrosion without the passive sacrificial process of a standard magnesium or aluminum anode rod. Unlike conventional rods that deplete over time, a powered anode uses a low-level impressed current to interrupt the electrochemical reaction that causes tank wall corrosion. At 19.69 inches in length, this kit is sized for compatible AO SMITH water heater models. Installation is typically performed by a licensed plumber during routine maintenance or as part of a service call to extend tank service life.

Powered anode rod kits are used in residential water heater applications where odor problems caused by sulfur-reacting standard anodes are a concern, or where extended corrosion protection is needed. This kit is a direct OEM replacement component, making it appropriate for service technicians maintaining AO SMITH water heaters in homes and light commercial settings. The impressed-current design eliminates the need for periodic anode rod replacement on the standard maintenance schedule.

Key Features

• Powered impressed-current design provides continuous corrosion protection without sacrificial depletion
• 19.69-inch rod length sized for compatible AO SMITH water heater tanks
• Eliminates sulfur odor issues commonly associated with standard magnesium anode rods
• OEM kit includes components needed for a complete installation
• Extends effective tank service life by maintaining consistent electrochemical protection

Compatibility

Designed as an OEM-style replacement powered anode rod kit for compatible AO SMITH residential water heater models. Refer to the water heater model documentation or AO SMITH service literature to confirm fitment before ordering.

Installation Notes

Installation of a powered anode rod kit should be performed by a licensed plumber familiar with water heater service procedures. Shut off the cold water supply and disconnect power to the water heater before beginning any work on the tank. Follow local plumbing codes and the manufacturer service instructions when removing the existing anode and installing the new powered unit. Ensure the electrical connection for the impressed-current circuit is made in accordance with applicable NEC requirements.

Technical Specifications

• Rod Length: 19.69 inches
• Type: Powered Anode Rod Kit

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100187890