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Gavin ThorntonBy Gavin Thornton

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An anode rod is a sacrificial part inside a water heater tank. According to the listings below, it takes corrosion in place of the steel tank wall, and it is replaced when it wears down. Rods differ mainly by metal, length, thread size and where they mount, so the tank comes first when comparing them.

These rods are listed for home water heater tanks, and none of the listings names a solar water heater tank as a fit. Check your tank maker’s anode specifications, then see Solar Water Heater Maintenance: Checks, Freeze Protection and Fixes for tank-side upkeep.

Every specification on this page comes from each product’s Amazon listing, checked on 7 November 2026. We have not used these products ourselves, so the picks are based on published specifications only.

For the tank side of the system, read Solar Water Heater Storage Tanks: What Homeowners Should Know alongside this list.

Quick picks

How we chose these

  • Metal: magnesium, aluminum zinc and titanium rods are described differently by their makers, so compare the metal first.
  • Length and clearance: flexible rods are sized for tight spaces, and some makers list a minimum clearance above the tank.
  • Tank and thread fit: the 3/4 inch NPT connection, the 9.25 inch Suburban RV size and the Bradford White hot water outlet are separate fits.
  • Maker claims: odor, service life and warranty statements come from each maker and are not independently verified here.

Each entry uses the maker’s own listing wording, and claims are attributed to that maker. Confirm the length, thread size and mount against your existing rod before ordering.

Comparison table

Product Material Length or size Fit or install Best for
1. Corro-Protec powered rod Titanium Not stated Dedicated anode port, 40-89 gallon Standard anode port tanks
2. Briidea powered rod Titanium with stainless steel tube Not stated 3/4 inch NPT, 40-89 gallon tanks Powered titanium buyers
3. DIYMEND 44 inch rod Magnesium 44 inch, 4 sections 3/4 inch NPT Closets and basements
4. Eastman 60286 Magnesium links on carbon steel cable 42 inch flexible 3/4 in x 3 in NPT Tight basements
5. Eastman 60296 Magnesium links on carbon steel cable 45 inch 1-1/6 inch hex head Longer rod fits
6. Eau 44 inch rod Aluminum zinc alloy 44 inch 3/4 inch NPT Odor-focused buyers
7. Ozek 44 inch rod Aluminum zinc 44 inch segmented Stainless steel joints Narrow spaces
8. Eastman 60288 Aluminum zinc 42 inch Top of tank, 12 inch clearance Aluminum zinc buyers
9. WaterConnection AR136 Aluminum zinc A420 Not stated 3/4 inch thick, 1-1/16 inch socket Solid aluminum zinc
10. WaterConnection aluminum rod Aluminum zinc A420 46.5 inch long Hot water outlet, 3/4 inch NPT Bradford White outlet installs
11. Rheem SP11309T Magnesium 39-3/8 in 3/4 in NPT, internal mount Rheem and many brands
12. ONENESS369 RV rod Pure magnesium, AZ31 core, steel nut 9.25 inch 3/4 inch NPT Suburban RV tanks
13. Suburban 233514 Magnesium with stainless steel core 9 inch 3/4 inch thread Suburban porcelain-lined tanks
14. Camco 11553 Magnesium 4.5 inch 1/2 inch NPT Atwood RV heaters

Length, thread and mounting values come from each listing. Entries marked Not stated are values the listing does not give.

Powered titanium rods

Titanium rods that their makers describe as long-lasting alternatives to magnesium or aluminum.

1. Corro-Protec Powered Anode Rod for Water Heater: for tanks with a standard anode port

1
Powered Anode Rod for Water Heater

Powered Anode Rod for Water Heater

Corro-Protec
View on Amazon
Pros & Cons

Pros

  • Titanium rod the brand calls maintenance-free
  • 20-year warranty stated
  • Standard anode port install

Cons

  • Not for Bradford White tanks, which the listing routes to a hot water outlet model
  • Odor and sediment results are brand claims

Corro-Protec describes this titanium rod as maintenance-free and offers it as a replacement for magnesium or aluminum rods. The listing says the rod mounts in the anode port at the top of a 40-89 gallon tank and carries a 20-year warranty.

  • Warranty: 20-year warranty (Corro-Protec)
  • Odor claim: eliminates sulfur smell within 24 hours (Corro-Protec)

2. Briidea Powered Anode Rod for Water Heater, 40-89 Gallon Tank: for 40-89 gallon tanks seeking fewer swaps

Briidea says the rod goes in within minutes using simple tools. The brand describes a 3/4 inch NPT stainless steel tube, an HDPE pipe it says reduces scale buildup, and up to 20 years of service life.

  • Service life: up to 20 years (Briidea)
  • Odor claim: eliminates odor-causing reactions within 24 hours (Briidea)

Flexible magnesium rods

Segmented magnesium rods for tight spaces and standard 3/4 inch connections.

3. DIYMEND 44 Inch Flexible Magnesium Anode Rod for Water Heater, 4-Section, 3/4 NPT: for closets, basements and confined spaces

DIYMEND describes this 44 inch magnesium rod as a four-section design for closets, basements and other limited-clearance spaces. The brand says it is intended for certain residential tank heaters that use a 3/4 inch NPT thread.

  • Brands named as compatible: Rheem and A.O. Smith, among others (DIYMEND)
  • Fit check: confirm original rod dimensions and thread size (DIYMEND)

4. Eastman 42 Inch Flexible Magnesium Anode Rod, 3/4 x 3 in NPT, 60286: for tight basements and standard 3/4 inch connections

Eastman, sold under the EZ-FLO name, lists this 42 inch flexible magnesium rod with four magnesium links on a carbon steel cable. The listing calls for at least 12 inches of room above the tank and a check every two years.

  • Item weight: 1.56 pounds (Eastman)
  • Inspection: check every two years, then replace when worn (Eastman)

5. Eastman 45 Inch Flexible Magnesium Anode Rod, 1-1/6 Inch Hex Head, Chrome, 60296: for taller clearance and longer rods

5
Eastman 45 Inch Flexible Magnesium Anode Rod, 1-1/6 Inch Hex Head, Chrome, 60296

Eastman 45 Inch Flexible Magnesium Anode Rod

Eastman
View on Amazon
Pros & Cons

Pros

  • Longest flexible Eastman rod listed here
  • Sections can be cut to fit
  • 1 year limited warranty stated

Cons

  • Needs 12 inches of clearance at the top of the tank
  • Eastman lists fit with many standard brands but not every model

Eastman lists this 45 inch flexible magnesium rod with a 1-1/6 inch hex head and a chrome finish. The brand says the four magnesium sections sit on a flexible cable and the rod can be trimmed to suit the tank.

  • Item weight: 1.54 pounds (Eastman)
  • Warranty: 1 Year Limited Warranty (Eastman)

Aluminum zinc rods

Flexible and solid aluminum zinc rods, with odor claims stated by their makers.

6. Eau 44 Inch Flexible Aluminum Zinc Anode Rod for Rotten Egg Smell: for buyers focused on odor claims

Eau sells this 44 inch aluminum zinc rod as a kit that includes Teflon sealing tape and a 27mm chrome socket. The brand says the rod folds into four parts, each shorter than 12 inches, and can be shortened with a hacksaw.

  • Connection: standard 3/4 inch NPT anode rod connection (Eau)
  • Odor claim: rotten egg smell elimination (Eau)

7. Ozek Anode Rod for Hot Water Heater, 44 in Segmented Aluminum Zinc: for narrow spaces

Ozek describes this 44 inch aluminum zinc rod as segmented with stainless steel joints, designed to fit tight spaces. The listing includes PTFE tape and states that the rod is not made to fit Bradford White water heaters.

  • Compatibility includes A.O. Smith and Rheem, among other brands (Ozek)
  • Included: PTFE tape (Ozek)

8. Eastman 42 Inch Flexible Aluminum/Zinc Anode Rod, 3 Inch Nipple, 60288: for buyers who want aluminum zinc with a flexible design

Eastman, sold as EZ-FLO, lists this aluminum zinc rod with four sections on a flexible carbon steel cable. The listing says it needs 12 inches of clearance at the top of the tank and carries a 1 Year Limited Warranty.

  • Item weight: 2.07 pounds (Eastman)
  • Warranty: 1 Year Limited Warranty (Eastman)

9. Water Connection AR136 Aluminum Zinc Anode Rod: for a solid aluminum zinc rod

WaterConnection calls this a solid aluminum zinc rod made from A420 aluminum, which the brand says meets a U.S. Mil standard. The brand says its 3/4 inch diameter gives more material to sacrifice than a 5/8 inch rod.

  • Socket: 1-1/16 inch (WaterConnection)
  • Odor claim: reduces sulfur smell in hot water (WaterConnection)

10. Water Connection Aluminum Anode Rod for Bradford White Water Heater: for hot water outlet installs

WaterConnection says this aluminum zinc rod is made to go in the hot water outlet, a location the brand ties to Bradford White tanks and some A.O. Smith models. The listing gives 3 inch and 5 inch nipple options, with 3 inch described as more typical.

  • Nipple options: 3 inch and 5 inch (WaterConnection)
  • Thickness: 3/4 inch diameter (WaterConnection)

RV and Rheem magnesium rods

Magnesium rods for Suburban and Atwood RV heaters and a Rheem replacement part.

11. Rheem SP11309T Magnesium Anode Rod, Silver, 39-3/8 in.: for a Rheem or broad-brand replacement

Rheem lists this 39-3/8 inch magnesium rod as an OEM genuine factory authorized part with a 3/4 in NPT fitting. The listing names a wide range of brands it is meant to fit, including Rheem, Ruud, Richmond, GE and A.O. Smith.

  • Mount type: internal (Rheem)
  • Item weight: 0.59 kg (Rheem)

12. ONENESS369 RV Water Heater Anode Rod 2-Pack, Black Nut 9.25 x 3/4 NPT: for Suburban RV tanks

12
RV Water Heater Anode Rod 2-Pack, Black Nut 9.25”x3/4” NPT

RV Water Heater Anode Rod 2-Pack

ONENESS369|RVAccessories
View on Amazon
Pros & Cons

Pros

  • Two-pack
  • Black steel nut the brand says suits low-mineral treated water

Cons

  • Listed for Suburban tanks at this size only
  • The brand matches the nut to water type

ONENESS369 sells this 9.25 inch RV rod with a pure magnesium AZ31 core and a black steel nut, sold as a two-pack. The listing states that Suburban heaters take a 9.25 inch rod with 3/4 inch NPT threads, while Atwood heaters take a 4.5 inch rod with 1/2 inch NPT threads.

  • Pack: 2-pack (ONENESS369)
  • Atwood size: 4.5 x 1/2 inch NPT (ONENESS369)

13. Suburban Magnesium Anode Rod for RV Water Heaters, 233514: for Suburban porcelain-lined RV tanks

Suburban sells this 9 inch magnesium rod with a stainless steel core for its porcelain-lined RV water heaters. The brand says the rod is best suited to high pH and soft water.

  • Item weight: 6.72 ounces (Suburban)
  • Thread size: 3/4 inch (Suburban)

14. Camco Magnesium RV Water Heater Anode Rod, 11553: for Atwood-style RV heaters

Camco sells this 4.5 inch magnesium rod for RV heaters of the Atwood type that have an aluminum tank. The listing gives a 1/2 inch NPT thread and says it can replace an old anode or drain plug.

  • Diameter: 5/8 inch OD (Camco)
  • Fit: built for Atwood-type RV tanks made of aluminum (Camco)

Which one fits you

Your situation Look at Why
You have a Bradford White tank WaterConnection aluminum rod made for the hot water outlet Several anode port rods list Bradford White as not compatible
Tight basement or low ceiling DIYMEND 44 inch flexible magnesium rod The listing describes a segmented rod that bends in confined spaces
Suburban or Atwood RV heater 9.25 inch Suburban or 4.5 inch Atwood rod Listings say the size depends on the heater model
You want fewer replacements Corro-Protec or Briidea titanium powered rod The makers describe long service or no routine swaps, which is their claim

Practical tips

  • Read the original rod’s length and thread size before ordering, since several listings ask buyers to check this first.
  • Measure the clearance above the tank. Eastman lists 12 inches as the minimum for its flexible rods.
  • Treat odor and service life statements as the maker’s claims, and compare them with your water and tank age.

FAQ

Do these rods fit solar water heater tanks?

The listings here describe home water heater tanks, and none names a solar water heater tank as a fit. Check your tank maker’s anode specifications before buying.

Which rod is for a Bradford White tank?

WaterConnection’s aluminum zinc rod is designed for the hot water outlet, which the brand says is usual for Bradford White. Corro-Protec’s titanium rod is listed for the standard anode port and not Bradford White tanks.

How often should a magnesium rod be checked?

Eastman advises a check every two years, with replacement once the rod is worn.

Sources

Specifications from each product’s Amazon listing, checked 7 November 2026: Corro-Protec Powered Anode Rod for Water Heater, Briidea Powered Anode Rod for Water Heater, 40-89 Gallon Tank, DIYMEND 44 Inch Flexible Magnesium Anode Rod for Water Heater, 4-Section, 3/4 NPT, Eastman 42 Inch Flexible Magnesium Anode Rod, 3/4 x 3 in NPT, 60286, Eastman 45 Inch Flexible Magnesium Anode Rod, 1-1/6 Inch Hex Head, Chrome, 60296, Eau 44 Inch Flexible Aluminum Zinc Anode Rod for Rotten Egg Smell, Ozek Anode Rod for Hot Water Heater, 44 in Segmented Aluminum Zinc, Eastman 42 Inch Flexible Aluminum/Zinc Anode Rod, 3 Inch Nipple, 60288, Water Connection AR136 Aluminum Zinc Anode Rod, Water Connection Aluminum Anode Rod for Bradford White Water Heater, Rheem SP11309T Magnesium Anode Rod, Silver, 39-3/8 in., ONENESS369 RV Water Heater Anode Rod 2-Pack, Black Nut 9.25 x 3/4 NPT, Suburban Magnesium Anode Rod for RV Water Heaters, 233514, Camco Magnesium RV Water Heater Anode Rod, 11553. Makers can change specifications; check the product page before you buy.

Gavin Thornton

About Gavin Thornton

Gavin researches and writes buying guides and how-to articles on solar water systems. Picks are based on product specifications, brand reputation and patterns in owner feedback, and are updated as new models come out.