Most water heaters have an in-built anode rod to protect the unit from breaking down internally. These anodes should be replaced when the unit has degraded more then 75% which should be checked annually, depending on the amount of water used.

Features

• Protects your water heater
• Improves water quality
• Designed for suburban RV water filters
• DIY Installation
• 241mm long 3/4" NPT Thread

Specifications

• Thread: 3/4" NPT
• Length: 241mm