Universal Compatibility：3/4" NPT standard thread fits 95% of residential gas/electric water heaters: Rheem, A.O. Smith, GE Geospring, Richmond, Reliance, and Giant tanks.Perfect match for mainstream American home models, seamless replacement for original accessories EXTEND LIFE OF YOUR WATER HEATER:Made of 100% solid magnesium, this anode rod provides superior corrosion protection vs. aluminum/zinc rods . It "sacrifices" itself to shield tank liners and heating elements from limescale erosion, avoiding leaks and extending service life by 2-3 years . Ideal for preserving enamel-lined tanks in basements or garages Cut Energy Bills Significantly：Reduces limescale buildup that slows heating efficiency—saving up to hundreds annually on electricity . Faster heat transfer means your water heater reaches set temperatures quicker, cutting runtime by 15-20%. Prevents costly repairs from corrosion-caused leaks Tool-Free Flexible Installation：29" length with easy-cut design—trim to size with a hacksaw for tight spaces like utility closets or under-sink units . Hex plug fits standard wrenches, no professional plumber needed. Installs in 10 minutes to restore protection instantly Proactive Maintenance Guide：Recommended replacement every 1-2 years to avoid sulfur (rotten egg) odors and tank degradation . When magnesium depletes, scale attacks heating elements—regular replacement saves $1000+ on premature heater replacements 8 steps to replace anode rod: 1. Turn off the power. Flip the circuit breaker to the water heater on the electrical panel. Use a non-contact voltage tester on the water heater to ensure it is off. 2. Dig out the foam insulation around the old anode rod and vacuum out the loose bit. 3. When the water supply is on, drain a few gallons (about 5.7 L) to flush the bottom of the tank, then turn off the water supply and allow more gallons to drain. 4. Remove the old socket using a 1 1/16 impact sleeve and a corded impact gun (using an impact gun is so easy!). . 5. Place the old rod in the recycling. 6. Wrap Teflon tape around the top thread of the new rod about four times. 7. Place the new rod in and tighten it using an ordinary old socket wrench. 8. Turn on the water supply, then turn on all hot water faucets around the house for about 30 seconds each. Let the hot water faucet run a little to remove air from the system, and if there is air in the water heater, it can protect you from blowing out elements