Water Heater Rescue: Know-How, Solutions, Parts graphic

Products > Powered Anode Standard

For water heaters that come with hex-head anodes that are flush with, or above the level of, the cover
Photos showing two views of a powered anode


  • a powered anode
  • pipe-thread seal tape
  • instructions

This replaces the anode that came with your tank. Fits all brands of all sizes of glass-lined steel residential heaters 3/4-inch ports and with a hex-head anode in its own port on top of the heater and hanging straight down. If your tank is larger than 80 gallons, tell us. The anode may need some adjustment of its output.

This anode is best used with tanks that have an exposed hex anode, as shown in the righthand photo, above right. If your tank is more like the lefthand photo, you should get SKU27, as the cutouts in water heater covers are narrower than the powered anode hex nut, and will need to be enlarged with snips.

Don't use in stainless steel or galvanized tanks, or the A.O. Smith Vertex. Not advised for indirect-fired water heaters. Not recommended for multi-anode indirect heaters.


The anode will keep your tank from rusting and breaking, while alleviating odor problems because of anaerobic bacteria found in some water that react with regular magnesium or aluminum anodes to produce hydrogen sulfide gas and a rotten-egg odor.

In water heaters with softened water but no odor issues, it provides a permanent replacement for sacrificial anodes, which are often consumed rapidly in softened water and thus, require frequent replacement.

It IS possible to use in any heater, but if you replace a sacrificial anode in a tank without a softener in hard water, we strongly recommend also putting in a sediment flush kit -- and actually flushing the heater every six months. Sediment buildup can bury the bottom of the heater, cutting it off from the anode's protection.

If your tank is in good condition, this will probably be the last anode you ever have to buy. For more on this, read What Kills Water Heaters.

If you have a vacation cabin where the water heater sits idle, it may be that, no matter what anode you put in it, the water will still smell bad. We don't want you to buy a powered anode if it won't solve your problem. You might do better to replumb your water heater to allow hydrogen peroxide to easily be added. That WILL solve the problem. Click here to learn more.

For other questions, read our FAQ page.


Socket wrench with 1 1/16-inch socket to remove old anode, adjustable wrench to tighten new one, which has a 1 1/2-inch hex nut. For further details, check out the Tools page and Know-How.


Powered anodes come with a seven-year warranty. If the LED goes out, or some other issue arises, contact us at mail@waterheaterrescue.com .


The shopping cart generates an invoice and response, but we will give you delivery date and tracking information within a few days of your order by e-mail. We try to ship within one business day. If there is any hitch, we'll let you know immediately. If you hear nothing, consult your e-mail junk file. It's not uncommon for spam blockers to reroute our e-mails.


The products offered here are designed to make water heaters last longer, or solve specific problems. Installation is potentially do-it-yourself, but if you have the least doubt about your abilities, we suggest that you obtain expert help.

Remember also that if you have difficulties with installation, odds are that a professional or handyman will know a way to do it.

Shipping is by UPS within the contiguous United States. UPS does not deliver to post boxes. Allow up to about a week for delivery. Canada, Hawaii and Alaska are only served by Priority Mail and can use a post box.


This anode must replace the one that came with the tank or the smell won't go away. If your tank has two anodes, the second one must also be removed.

If you have a power vent heater, the power connector will stick up two inches above the top of the tank and may prevent reinstallation of the vent housing.

We highly recommend that you read our Water Pressure Issues page, as high pressure can damage powered anodes.

It is possible that the opening in the top of the tank will have to be enlarged with snips to accommodate the hex nut, which is larger than that of a sacrificial anode.

If you have a new heater and it looks as if you'll have to cut the sheet-metal top to accommodate the power anode hex head, that could void your warranty. In that case, we suggest ordering the powered anode for heaters with hex anodes still under warranty or with deep hex ports.

If you have any doubts about what you're ordering, be sure and e-mail your questions to us at mail@waterheaterrescue.com. We want you to order only what you need!

If you install this device in a way significantly differently from the instructions and intended use, you may void the warranty. Contact us if you have an unusual installation problem, or any doubt at all, and we can probably help.


Merchandise in original condition can usually be returned for a full refund of the purchase price, not including shipping. E-mail mail@waterheaterrescue.com for instructions and authorization.


Back to Products
Home | Site Map