Ao Smith 100109594 Aluminum Anode Rod 3/4 in 33 in

Product Description

The AO SMITH 100109594 is an OEM sacrificial anode rod designed to protect the glass-lined tank in select A. O. Smith residential water heaters from corrosion. Made from aluminum, it measures 3/4 inch in diameter and 33 inches in length, with a hex end connection for standard installation. Sacrificial anode rods corrode preferentially over the tank lining, extending the serviceable life of the water heater. This is a direct factory replacement part, intended for use by licensed plumbers and water heater service technicians performing routine maintenance or anode replacement on residential units.

This anode rod is used in residential water heater maintenance applications where the existing anode has been depleted or is due for scheduled replacement. It is specified for select A. O. Smith residential water heater models where manufacturer parts literature calls out part number 100109594. Routine anode inspection and replacement is a standard maintenance task on tank-style water heaters and is critical to tank longevity, particularly in areas with aggressive or softened water.

Key Features

• OEM factory replacement part for select A. O. Smith residential water heaters
• Aluminum construction provides sacrificial corrosion protection for the glass-lined tank
• 3/4 inch diameter with hex end connection for standard socket installation
• 33 inches in length for compatibility with full-size residential tank models
• Helps extend tank service life by corroding preferentially over the tank lining

Compatibility

For A. O. Smith residential water heaters where A. O. Smith parts literature specifies part number 100109594 as the required anode rod. Verify fitment against the model and serial number before ordering.

Installation Notes

Installation should be performed by a licensed plumber or qualified water heater service technician. Before removing the existing anode rod, shut off the cold water supply and relieve tank pressure per the water heater manufacturer instructions. A socket wrench is typically required for the hex end fitting. After installation, restore water supply and inspect the connection for leaks before returning the unit to service.

Technical Specifications

• Material: Aluminum
• Diameter: 3/4 inches
• Length: 33 inches
• End Type: Hex
• Connection Size: 3/4 inches
• Application: Replacement Part

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100109594