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Products > Aluminum/Zinc (A420)Anodes

Solid and flex hex and combo A420 anodes

What you'll find here: Solutions to rotten-egg odor in water heaters when a water softener is NOT being used. These comprise A420 aluminum/zinc sacrificial anodes and the Peroxide Fix hardware for adding peroxide in stagnation situations. The hex anodes are .75-inch-diameter by 44 inches long, while the combos are .75-inch-diameter by 48 inches long. The flex anodes are usable down to 12 inches of overhead clearance. The two on the top of the photo are combos; those at the bottom are hexes. If you're not sure what you need, think about buying a consultation. We'll repay the fee if you buy what we recommend within 10 days. Worth noting: the UPS calculator works well for one or two items, but exaggerates if you buy a bunch. For instance, a recent order of six items generated of $53, when the true shipping was about $18. When this happens, we always refund the difference. If you didn't know that, it might scare you off.

Solid hex-head aluminum/zinc anode rod
SKU11 $48
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Flexible hex-head aluminum/zinc anode rod
SKU12 $49
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Solid combo aluminum/zinc anode rod
SKU13 $52
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Flexible combo aluminum/zinc anode rod
SKU14 $53
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Peroxide fix plumbing assembly
For vacation cabins that sit idle for more than a few weeks.
A brass ball valve, brass tee, brass nipples, and plastic-lined steel nipple that, when put together, will permit easy application of hydrogen peroxide to heaters that sit idle for long periods, to control rotten-egg odor.
SKU28 $77
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Shipping is by UPS Ground within the contiguous United States and Priority Mail to Canada, Alaska and Hawaii. UPS does not deliver to post boxes. Allow about a week for shipping. We try for shipment within one business day of receipt, and when we've set up the order, we can give you estimated delivery date and a tracking number. The shopping cart generates an invoice and automated response, but you should hear from us fairly soon thereafter. If there is any hitch with your order, we'll tell you immediately. If you don't hear from us, check your e-mail junk folder. Occasionally spam blockers divert our mail.


Doing it yourself: 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.

Also, it's better to make sure you can loosen the factory anode or pipe nipples before you order. That's easier than ordering and then having to return it. But, too, a plumber can probably get it out even if you can't, so consider that as an option.

Anodes and flush kits are of a standard size used by the whole American water heater industry. They will fit all residential tanks with 3/4-inch plumbing.

Return Policy

Merchandise in original condition can usually be returned within 120 days for a full refund of the purchase price, not including shipping. Write to mail@waterheaterrescue.com for instructions and authorization.


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