Reason for upgrading: The ruthenium-iridium coating on the surface of the titanium anode rods at the end of the anode bar does not deteriorate over time, compared to conventional anode rods that are frequently replaced, and we only need your choice once. But with the 3/4'' NPT stainless steel pipe on the top of the anode rod, it is like putting a strong armor on the hot water tank. Within 24 hours, the unpleasant smell of rotten eggs in hot water is eliminated, the odor is instantly removed, the air is refreshed, as if you can smell the sunshine and the breeze, and your body and mind are instantly freed from that unpleasant atmosphere. Macromatic THR-3816U Multi- Function Encapsulated Time Delay Relay, On Delay, Interval, Off Delay, Single Shot Larger Photo Reviews for CORRO-PROTEC Powered Anode Rod For 40-89 Gal. Residential... Reviews for CORRO-PROTEC Powered Anode Rod For 40-89 Gal. Residential I'll take care of it for you: look at that object, stained by rust. It's time for a change: when that annoying rotten egg smell hits your nose, it's as if the whole world has become dull and depressing. When the anode rod comes on the scene, it's like magic. In spite of years of erosion, water vapor attack, still bright as new, the service life of up to 20 years, super worry na! Rv CORRO PROTEC Powered Anode Rod For 40-89 Gallon Tanks (Installed Price Anode Rod For Hot Water Heater