AO Smith 100109594

AO Smith 100109594 anode rod protects your water heater from mineral corrosion and helps extend its life. Built for durability, this 33" long rod features 3/4" NPT threading to fit a wide range of tanks and compatibility with AO Smith models.

This anode rod is designed to replace parts 43817-48 and 9003892005, ensuring a seamless upgrade for many AO Smith and compatible water heaters. It delivers essential corrosion protection by attracting corrosive elements away from the steel tank and can help extend the interval between service calls.

Designed for straightforward installation on most standard water heaters, this AO Smith compatible anode rod fits 3/4 inch NPT ports. Regular inspection and timely replacement of the anode rod help guard the tank against rust and mineral buildup, preserving efficiency and reducing maintenance costs over time.

• 33" length with 3/4" NPT threading for easy installation
• Replaces 43817-48 and 9003892005 for reliable compatibility
• Compatible with most AO Smith and standard water heaters
• Protects the tank from corrosion and mineral buildup to extend heater life
• Simple DIY replacement with basic tools