Camco RV Aluminum Anode Rod extends the life of a water heater by attracting corrosive elements in the water, protecting the tank and elements from corrosion. This Anode Rod fits Suburban and Mor-Flo water heaters. Extends the life of a water heater by attracting corrosive elements in the water Aluminum anode rod 5/8"diameter x 9.5" long Provides corrosion protection 3/4" NPT fits Suburban/Mor-Flo water heaters