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Dielectric Unions & Nipples

  • 1/2" LF3001A CxF Dielectric Union <br>(Lead Free) Product Image
    $11.99 each
    $114.90 box of 10
    $11.49 each
    79
    Fri, Aug 30
    79
    QtyArrives
    79 Fri, Aug 30
    Questions? Call 1-888-757-4774
  • 3/4" LF3001A CxF Dielectric Union<br>(Lead Free) Product Image
    $11.99 each
    $114.90 box of 10
    $11.49 each
    263
    Fri, Aug 30
    263
    QtyArrives
    263 Fri, Aug 30
    Questions? Call 1-888-757-4774
  • 1" LF3001A CxF<br>Dielectric Union<br>(Lead Free) Product Image
    1" LF3001A CxF Dielectric Union (Lead Free)
    SKU: 0009866
    Brand: Watts
    (13)
    $18.49 each
    $176.90 box of 10
    $17.69 each
    36
    Fri, Aug 30
    36
    QtyArrives
    36 Fri, Aug 30
    Questions? Call 1-888-757-4774
  • 1" FIP x 3/4" Solder LF3002 Dielectric Union, Lead Free Product Image
    $20.49 each
    $196.90 box of 10
    $19.69 each
    26
    Fri, Aug 30
    26
    QtyArrives
    26 Fri, Aug 30
    Questions? Call 1-888-757-4774
  • 1-1/4" LF3001A CxF Dielectric Union<br>(Lead Free) Product Image
    $35.49 each
    $339.90 box of 10
    $33.99 each
    67
    Fri, Aug 30
    67
    QtyArrives
    67 Fri, Aug 30
    Questions? Call 1-888-757-4774
  • 1-1/2" LF3001A CxF Dielectric Union<br>(Lead Free) Product Image
    $47.99 each
    $455.90 box of 10
    $45.59 each
    47
    Fri, Aug 30
    47
    QtyArrives
    47 Fri, Aug 30
    Questions? Call 1-888-757-4774
  • 2" LF3001A CxF <br>Dielectric Union<br>(Lead Free) Product Image
    2" LF3001A CxF Dielectric Union (Lead Free)
    SKU: 0009869
    Brand: Watts
    (13)
    $74.99 each
    $708.90 box of 10
    $70.89 each
    8
    Fri, Aug 30
    8
    QtyArrives
    8 Fri, Aug 30
    Questions? Call 1-888-757-4774
  • 3/4" 3003 FxF<br>Dielectric Union<br>(Lead Free) Product Image
    3/4" 3003 FxF Dielectric Union (Lead Free)
    SKU: 0009875
    Brand: Watts
    (13)
    $20.99 each
    $100.45 box of 5
    $20.09 each
    100
    Fri, Aug 30
    100
    QtyArrives
    100 Fri, Aug 30
    Questions? Call 1-888-757-4774
  • 1" LF3003 FxF<br>Dielectric Union<br>(Lead Free) Product Image
    1" LF3003 FxF Dielectric Union (Lead Free)
    SKU: 0009876
    Brand: Watts
    (13)
    $35.99 each
    $171.95 box of 5
    $34.39 each
    44
    Fri, Aug 30
    44
    QtyArrives
    44 Fri, Aug 30
    Questions? Call 1-888-757-4774
  • 1-1/2" LF3003 FxF<br>Dielectric Union<br>(Lead Free) Product Image
    $82.99 each
    8
    Fri, Aug 30
    8
    QtyArrives
    8 Fri, Aug 30
    Questions? Call 1-888-757-4774
  • 1/2" LF3003 FxF Dielectric Union, Lead Free Product Image
    1/2" LF3003 FxF Dielectric Union, Lead Free
    SKU: 0009874
    Brand: Watts
    (13)
    $17.49 each
    13
    Fri, Aug 30
    13
    QtyArrives
    13 Fri, Aug 30
    Questions? Call 1-888-757-4774
  • 2" LF3003 FxF<br>Dielectric Union<br>(Lead Free) Product Image
    $109.99 each
    3
    Fri, Aug 30
    3
    QtyArrives
    3 Fri, Aug 30
    Questions? Call 1-888-757-4774
  • 1/2" LF3004 FxF <br>Dielectric Union<br>(Lead Free) Product Image
    $15.79 each
    Mon, Sep 9 – Wed, Sep 11
    Arrives
    Mon, Sep 9 – Wed, Sep 11
    Questions? Call 1-888-757-4774 or LiveChat Img Chat Us
  • 1" Dielectric Union Repair Kit Product Image
    1" Dielectric Union Repair Kit
    SKU: 0881433
    Brand: Watts
    $9.49 each
    Mon, Sep 9 – Wed, Sep 11
    Arrives
    Mon, Sep 9 – Wed, Sep 11
    Questions? Call 1-888-757-4774 or LiveChat Img Chat Us
  • 1" LF3004 Lead Free FIP to FIP Dielectric Union Product Image
    $22.99 each
    18
    Fri, Aug 30
    18
    QtyArrives
    18 Fri, Aug 30
    Questions? Call 1-888-757-4774
  • 1-1/4" LF3004 Lead Free FIP to FIP Dielectric Union Product Image
    $32.99 each
    Mon, Sep 9 – Wed, Sep 11
    Arrives
    Mon, Sep 9 – Wed, Sep 11
    Questions? Call 1-888-757-4774 or LiveChat Img Chat Us
  • 3/4" LF3004 FxF <br>Dielectric Union<br>(Lead Free) Product Image
    $16.99 each
    $162.90 box of 10
    $16.29 each
    60
    Fri, Aug 30
    60
    QtyArrives
    60 Fri, Aug 30
    Questions? Call 1-888-757-4774
  • 1-1/2" LF4001E CxF Dielectric Union<br>(Lead Free) Product Image
    $82.99 each
    Wed, Sep 11 – Mon, Sep 16
    Arrives
    Wed, Sep 11 – Mon, Sep 16
    Questions? Call 1-888-757-4774 or LiveChat Img Chat Us
  • 1" LF3001-GB CxF Dielectric Union w/ EPDM Gasket (Lead Free) Product Image
    $35.99 each
    Mon, Sep 9 – Wed, Sep 11
    Arrives
    Mon, Sep 9 – Wed, Sep 11
    Questions? Call 1-888-757-4774 or LiveChat Img Chat Us
  • 3/4" LF4001E CxF <br>Dielectric Union<br>(Lead Free) Product Image
    $14.99 each
    Wed, Sep 11 – Mon, Sep 16
    Arrives
    Wed, Sep 11 – Mon, Sep 16
    Questions? Call 1-888-757-4774 or LiveChat Img Chat Us
  • 1" LF4001E CxF <br>Dielectric Union<br>(Lead Free) Product Image
    $31.99 each
    Wed, Sep 11 – Mon, Sep 16
    Arrives
    Wed, Sep 11 – Mon, Sep 16
    Questions? Call 1-888-757-4774 or LiveChat Img Chat Us
  • 2" LF4001E CxF <br>Dielectric Union<br>(Lead Free) Product Image
    $119.99 each
    Wed, Sep 11 – Mon, Sep 16
    Arrives
    Wed, Sep 11 – Mon, Sep 16
    Questions? Call 1-888-757-4774 or LiveChat Img Chat Us
  • 1/2" CxF Dielectric Union<br>(Lead Free) Product Image
    1/2" CxF Dielectric Union (Lead Free)
    SKU: 12-DUXLC
    Brand: Zurn
    $8.55 each
    $82.90 box of 10
    $8.29 each
    Thu, Sep 5 – Mon, Sep 9
    Arrives
    Thu, Sep 5 – Mon, Sep 9
    Questions? Call 1-888-757-4774 or LiveChat Img Chat Us
  • 3/4" CxF Dielectric Union<br>(Lead Free) Product Image
    3/4" CxF Dielectric Union (Lead Free)
    SKU: 34-DUXLC
    Brand: Zurn
    $7.02 each
    $70.20 box of 10
    $7.02 each
    85
    Fri, Aug 30
    85
    QtyArrives
    85 Fri, Aug 30
    Questions? Call 1-888-757-4774

Resources

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Articles

  • Applications
    A dielectric union is utilized in a plumbing system to make a connection between two pipes of dissimilar metal (such as copper and galvanized Steel). The installation of a dielectric union to separate the two dissimilar metals will prevent corrosion that would otherwise occur over time. They are used in many common residential and commercial applications including: hot water storage tanks, water and air conditioners, and processing tanks and are commonly found in steam, gas, and water piping systems.

    How does a Dielectric Union prevent corrosion?
    Generally all tap water is slightly acidic or basic. When tap water flows through two pipes of dissimilar metal (such as Copper and Galvanized Steel), an electric current is created. The chemical reaction created by the electric current will ultimately erode one of the metals, while simultaneously forming a buildup of new material on the second metal. This buildup of new material typically consists of substance from the eroded metal, and the acid produced during the chemical process.

    A dielectric union consists of four parts: a union nut, two tailpieces, and a gasket. Watts 3001A dielectric unions feature a female iron pipe (FIP) thread x brass solder connection, and are available in sizes ranging from 1/2" to 2".
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