Definataly a good thing to use, after seeing what corrodes off, I am always glad it is not left in my tank...

Thanks GENECOP appreciate your feedback - anode it is!!!! they have Aluminum or Magnesium which cost more so I assume Magne is better?

RVPAINTER------You may know this but not all water heaters use an anode rod---it the WH tank is aluminum no rod is necessary, however if it is a steel tank an anode rod is a very good thing and you had better not go with out one. None of my RV's (3) have had anode rod's. If your tank needs one it will have come from the factory with one installed, it would need replaced yearly, two at the most.

Flyone

ATWOOD brand does not need an Anode Rod, SUBURBAN heaters do need a Rod, Flyone is correct...

The aluminum one works just fine.I changed mine once a year but checked it at 6 months.

Thanks guys - appreciate the info.

Don't buy the universal short one that fits either Atwood, which doesn't need an anode rod, or Suburban, that does need one. You want the long one since you need all the metal you can get. Aluminum is fine and I think that is what Suburban's own are. I guess I am lucky, I change it about every other year and each time I could have gone longer since plenty has been left on the rod each time with my 10gallon water heater. Do buy teflon tape, it is cheap, and make sure you have the right socket.

Thanks Bill - yes, PPL has the longer one for the Suburban. I'll wait and see what the manual specifies and then order one to have on hand.

We have a Suburban 6gl as well. The anode rod takes place of the drain plug, on ours anyway. Check it every 6 months or so. Haven't had to replace it in awhile.