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Internet # 203871937

Model # WB00-18N

Store SKU # 1000687674

Store SO SKU #1000687674

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3/4 in. FIP x 3/4 in. FIP x 18 in. Copper Water Heater Connector 7/8 in. OD

$13.24
  • Use with electric and gas water heaters and softeners
  • Durable copper construction won't corrode for lasting sue
  • Eliminates the need to install an additional dielectric union
  • View More Details

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Product Details

About This Product

Corrosion is no match for BrassCrafts COPPER-FLEX water heater connectors. Constructed of seamless copper tubing, Copperflex water heater connectors are the professional's choice for water heater installations. Featuring an integrated dielectric sleeve, the sleeve isolates dissimilar metals within the waterway, where galvanic and electrolytic corrosion have their greatest potential. This separation provides complete protection against galvanic corrosion that can deteriorate the connector and cause leaks. In addition, the integrated dielectric sleeve eliminates the need to install an additional dielectric union, reducing time and installation costs.

Highlights

  • Integrated dielectric sleeve isolates dissimilar metals within the waterway, where galvanic and electrolytic corrosion have their greatest potential
  • No dielectric union needed, the integrated dielectric sleeve eliminates the need to install an additional dielectric union, reducing time and installation costs
  • Requires less torque to seal with a pliable nitrile rubber washer, especially on rough nipple surfaces
  • Use with electric or gas water heaters or softener, use only to connect water
  • Engineered and tested for harsh water conditions
  • Temperature rating: 40 degree to 180 degree F (NSF61 maximum 82 degree C)
  • Pressure rating: water pressures up to 125 psi maximum
  • CSA and IAPMO certified
  • NSF 61 and no-lead certified
  • Use only to connect water
  • Return Policy
  • California residents
     see Prop 65 WARNINGS

Product Information

Internet # 203871937

Model # WB00-18N

Store SKU # 1000687674

Store SO SKU #1000687674

Specifications

Dimensions: H 1.125 in, W 1.125 in, L 18 in

Dimensions

Product Height (in.)

1.125 in

Product Length (in.)

18 in

Product Width (in.)

1.125 in

Details

Finish Family

Bronze/Copper Metallic

Material

Copper

Pack Size

1

Returnable

90-Day

Warranty / Certifications

Manufacturer Warranty

Limited manufacturer warranty. See BrassCraft.com

Questions & Answers

Can you ground to this connector?
ByMar 5, 2026
1 Answer | 
Answer This Question

No, These connectors have a dielectric fitting that isolates the corrugated copper from the pipe you are attaching to and the water heater nipple.

By|Mar 6, 2026


    Is the nuts made of Brass on BrassCraft 3/4 in. FIP x 3/4 in. FIP x 18 in. Copper Water Heater Connector 7/8 in. OD
    ByNov 19, 2021
    1 Answer | 
    Answer This Question

    Hello, We appreciate your question and would like to gather more information from you to best assist you. Please contact one of our Customer Support Team Members at 877-272-7755 and reference this review.

    By|Nov 22, 2021


      Is the use of teflon tape or pipe sealant necessary for this connector when connecting to water heater nipples that have the plastic heat-trap lining?
      ByAug 9, 2019
      2 Answers | 
      Answer This Question

      Hi John, thank you for your question. This connector has a rubber gasket and therefore does not require the use of Teflon tape. If you still need assistance or would like some help selecting tools for your next project, please feel free to contact our Customer Support Representatives toll-free at 877-272-7755.

      By|Aug 13, 2019

        No tape or sealant is required - there is a rubber washer on each end that provides a water-tight connection at each end if you tighten the nut adequately. Tape and sealant is required when using a screw-on copper adapter that welds to copper pipe since it lacks a rubber washer or any other way to prevent water from getting between the copper adapter and steel nipple causing nipple corrosion then leakage. I don't like or recommend using rubber washers with hot water as they tend to disintegrate over time and release small bits of sticky black pieces into the stream which end up in your sink, tub, etc. (see the complaints with SharkBite connectors). Cold water connections are OK though. I used this to connect my expansion tank to the cold water inlet and wrapped the male threads with Teflon tape out of habit. All my other connections are welded which never leak or need tightening etc. See my water heater review for any other details https://www.homedepot.com/p/Rheem-Performance-Platinum-50-Gal-Medium-12-Year-4500-4500-Watt-Elements-Mobile-Alert-Compatible-Electric-Tank-Water-Heater-XE50M12EC45U0/206282270 Hope this helps.

        By|Oct 12, 2025
        0/0

        (2)

        What is the minimum bend radius? I can not find that information. Also, does this come with the dielectric sleeves at the ends (not the gasket)?
        ByFeb 22, 2019
        2 Answers | 
        Answer This Question

        Hi Bug, the minimum bend is 1.5" and any bending should be done using a tube bender to make sure that the tube is supported during the bend. This product does come with the dielectric sleeves. If you still need assistance, please feel free to contact our Customer Support Representatives toll-free at 877-272-7755.

        By|Feb 26, 2019

          There are short sleeves on each end, approximately 2" or so as I remember. You can see them looking through the rubber washers on each end. I can't guess the minimum and they are a bit stiff to bend but you can surely get it tighter than 90 degrees (18" or longer units). If you look at the question titled "Is the inner hose rubber or all copper", you see the photo of my 18" hose with a rounded, less than 90 degree bend in it on the upper end (it bends forward to the expansion tank so there is slack for future changes). Also read the mfr response. It's Home Depot, you can always return it. Hope this helps.

          By|Feb 23, 2019


          Is this single use? Or can I reuse after replacing the nipple anode?
          ByMay 4, 2018
          1 Answer | 
          Answer This Question

          Hi Lt - We do not recommend you reuse this connector. It is intended for original installation only. Removal and additional handling may have damaged connector making it unsafe for reuse. Please contact our Customer Support Team at 877-272-7755 with any other questions.

          By|May 5, 2023


            is this legal to use in Michigan?
            ByMar 2, 2018
            2 Answers | 
            Answer This Question

            Send your question and explanation of how it will be used to your local township codes enforcement office (building inspector). Send a picture of this connector in your email so they have a clear picture of what it is. Hope this helps.

            By|May 5, 2023

              Hello Darius- Thank you for your question. The WB00-18N, 3/4" FIP x 3/4" copper Water Heater Connector is IAPMO listed to ASME A112.18.6 and CSA B125 (File # 0452) and CSA listed to CSA B125 (File # 204593), this is also compliant wit the CSA listing to Low Lead Content Certification. This is legal to use in Michigan, however each county and city have different codes. Please check with your local plumbing department for your city to ensure they will give you the proper permits to pass your inspection.

              By|May 5, 2023


                Do you sell a flex copper water heater connector with integrated ball valve?
                ByJul 26, 2017
                1 Answer | 
                Answer This Question

                Hello JP - That is a great question! We have the tankless water heater kits that have 1/4 turn or full-port gas ball valves included. The ball valves for the copper water heater connector's like the one in question are sold separately. If you have any further feedback, questions, or concerns, please feel free to reach out to our Customer Support Team toll-free at 877-272-7755.

                By|May 4, 2023


                  Trying to disconnect softener unit. Original unit loop and pipe connection and loop connected with PVC
                  ByJun 4, 2016
                  1 Answer | 
                  Answer This Question

                  Thank you CT for the question. This product can be used with a PVC piping system only with an adapter. The Home Depot Store carries a push on adapter SKU # 280464. If you have any questions on the installation of connector, please feel free to contact our customer support team toll-free at 877-272-7755.

                  By|May 3, 2023


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                    Customer Reviews

                    4.6 out of 5

                    • 4.6 out of 17 reviews
                    • 100% recommend this product
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                    The BrassCraft 3/4 in. FIP x 18 in. copper water heater connector was exactly as described. It fit perfectly and matched the part we needed without any issues. The quality feels solid, installation was straightforward, and it works flawlessly. I’m very satisfied with this purchase and would highly recommend it to anyone needing a reliable connector.
                    by
                    Pipe and flexibility were impressive and the couplings were well machined. Made my job so much ea...
                    Pipe and flexibility were impressive and the couplings were well machined. Made my job so much easier, over using solid pipe and soldered fittings.
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                    works as expected. Will see if it will last.
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