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Dielectric Unions & Nipples

  • 1/2" LF3001A CxF Dielectric Union <br>(Lead Free) Product Image
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    1/2" LF3001A CxF Dielectric Union (Lead Free) 0009864 1/2" LF3001A CxF Dielectric Union (Lead Free)
    SKU: 0009864
    Brand: Watts
    (13)
    $11.29 each
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    $203.52 box of 24
    $8.48 each
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  • 3/4" LF3001A CxF Dielectric Union<br>(Lead Free) Product Image
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    3/4" LF3001A CxF Dielectric Union (Lead Free) 0009865 3/4" LF3001A CxF Dielectric Union (Lead Free)
    SKU: 0009865
    Brand: Watts
    (13)
    $11.29 each
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    $251.52 box of 24
    $10.48 each
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  • 3/4" FIP x 1/2" Solder LF3002 Dielectric Union, Lead Free Product Image
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    3/4" FIP x 1/2" Solder LF3002 Dielectric Union, Lead Free 0009872 3/4" FIP x 1/2" Solder LF3002 Dielectric Union, Lead Free
    SKU: 0009872
    Brand: Watts
    (13)
    $11.99 each
    Mon, Feb 3 – Wed, Feb 5
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  • 1" FIP x 3/4" Solder LF3002 Dielectric Union, Lead Free Product Image
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    1" FIP x 3/4" Solder LF3002 Dielectric Union, Lead Free 0009873 1" FIP x 3/4" Solder LF3002 Dielectric Union, Lead Free
    SKU: 0009873
    Brand: Watts
    (13)
    $20.49 each
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  • 1" LF3001A CxF<br>Dielectric Union<br>(Lead Free) Product Image
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    1" LF3001A CxF Dielectric Union (Lead Free) 0009866 1" LF3001A CxF Dielectric Union (Lead Free)
    SKU: 0009866
    Brand: Watts
    (13)
    $17.49 each
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    $181.44 box of 12
    $15.12 each
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  • 1-1/4" LF3001A CxF Dielectric Union<br>(Lead Free) Product Image
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    1-1/4" LF3001A CxF Dielectric Union (Lead Free) 0009867 1-1/4" LF3001A CxF Dielectric Union (Lead Free)
    SKU: 0009867
    Brand: Watts
    (13)
    $33.59 each
    52
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  • 1-1/2" LF3001A CxF Dielectric Union<br>(Lead Free) Product Image
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    1-1/2" LF3001A CxF Dielectric Union (Lead Free) 0009868 1-1/2" LF3001A CxF Dielectric Union (Lead Free)
    SKU: 0009868
    Brand: Watts
    (13)
    $44.99 each
    26
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  • 2" LF3001A CxF <br>Dielectric Union<br>(Lead Free) Product Image
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    2" LF3001A CxF Dielectric Union (Lead Free) 0009869 2" LF3001A CxF Dielectric Union (Lead Free)
    SKU: 0009869
    Brand: Watts
    (13)
    $69.99 each
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  • 3/4" 3003 FxF<br>Dielectric Union<br>(Lead Free) Product Image
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    3/4" 3003 FxF Dielectric Union (Lead Free) 0009875 3/4" 3003 FxF Dielectric Union (Lead Free)
    SKU: 0009875
    Brand: Watts
    (13)
    $20.29 each
    91
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  • 1" LF3003 FxF<br>Dielectric Union<br>(Lead Free) Product Image
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    1" LF3003 FxF Dielectric Union (Lead Free) 0009876 1" LF3003 FxF Dielectric Union (Lead Free)
    SKU: 0009876
    Brand: Watts
    (13)
    $32.29 each
    31
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    31 Thu, Jan 30
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  • 1/2" LF3003 FxF Dielectric Union, Lead Free Product Image
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    1/2" LF3003 FxF Dielectric Union, Lead Free 0009874 1/2" LF3003 FxF Dielectric Union, Lead Free
    SKU: 0009874
    Brand: Watts
    (13)
    $17.49 each
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    $402.96 box of 24
    $16.79 each
    14
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    14 Thu, Jan 30
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  • 1-1/2" LF3003 FxF<br>Dielectric Union<br>(Lead Free) Product Image
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    1-1/2" LF3003 FxF Dielectric Union (Lead Free) 0009878 1-1/2" LF3003 FxF Dielectric Union (Lead Free)
    SKU: 0009878
    Brand: Watts
    $82.99 each
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  • 2" LF3003 FxF<br>Dielectric Union<br>(Lead Free) Product Image
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    2" LF3003 FxF Dielectric Union (Lead Free) 0009879 2" LF3003 FxF Dielectric Union (Lead Free)
    SKU: 0009879
    Brand: Watts
    $107.99 each
    10
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    10 Thu, Jan 30
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  • 1/2" LF3004 FxF <br>Dielectric Union<br>(Lead Free) Product Image
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    1/2" LF3004 FxF Dielectric Union (Lead Free) 0821930 1/2" LF3004 FxF Dielectric Union (Lead Free)
    SKU: 0821930
    Brand: Watts
    $15.59 each
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    $359.76 box of 24
    $14.99 each
    12
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  • 1" Dielectric Union Repair Kit Product Image
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    1" Dielectric Union Repair Kit 0881433 1" Dielectric Union Repair Kit
    SKU: 0881433
    Brand: Watts
    $9.49 each
    Wed, Feb 5 – Fri, Feb 7
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    Wed, Feb 5 – Fri, Feb 7
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  • 1-1/4" LF3004 Lead Free FIP to FIP Dielectric Union Product Image
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    1-1/4" LF3004 Lead Free FIP to FIP Dielectric Union 0821933 1-1/4" LF3004 Lead Free FIP to FIP Dielectric Union
    SKU: 0821933
    Brand: Watts
    $32.99 each
    Wed, Feb 5 – Fri, Feb 7
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  • 1" LF3004 Lead Free FIP to FIP Dielectric Union Product Image
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    1" LF3004 Lead Free FIP to FIP Dielectric Union 0821932 1" LF3004 Lead Free FIP to FIP Dielectric Union
    SKU: 0821932
    Brand: Watts
    $22.99 each
    65
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  • 3/4" LF3004 FxF <br>Dielectric Union<br>(Lead Free) Product Image
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    3/4" LF3004 FxF Dielectric Union (Lead Free) 0821931 3/4" LF3004 FxF Dielectric Union (Lead Free)
    SKU: 0821931
    Brand: Watts
    $15.99 each
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    $183.48 box of 12
    $15.29 each
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  • 1-1/2" LF4001E CxF Dielectric Union<br>(Lead Free) Product Image
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    1-1/2" LF4001E CxF Dielectric Union (Lead Free) 0821464 1-1/2" LF4001E CxF Dielectric Union (Lead Free)
    SKU: 0821464
    Brand: Watts
    $82.99 each
    Fri, Feb 7 – Wed, Feb 12
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    Fri, Feb 7 – Wed, Feb 12
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  • 1" LF3001-GB CxF Dielectric Union w/ EPDM Gasket (Lead Free) Product Image
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    1" LF3001-GB CxF Dielectric Union w/ EPDM Gasket (Lead Free) 0124300 1" LF3001-GB CxF Dielectric Union w/ EPDM Gasket (Lead Free)
    SKU: 0124300
    Brand: Watts
    (13)
    $35.99 each
    2
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  • 2" LF4001E CxF <br>Dielectric Union<br>(Lead Free) Product Image
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    2" LF4001E CxF Dielectric Union (Lead Free) 0821465 2" LF4001E CxF Dielectric Union (Lead Free)
    SKU: 0821465
    Brand: Watts
    $119.99 each
    Fri, Feb 7 – Wed, Feb 12
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    Fri, Feb 7 – Wed, Feb 12
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  • 1" LF4001E CxF <br>Dielectric Union<br>(Lead Free) Product Image
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    1" LF4001E CxF Dielectric Union (Lead Free) 0821462 1" LF4001E CxF Dielectric Union (Lead Free)
    SKU: 0821462
    Brand: Watts
    $31.99 each
    Fri, Feb 7 – Wed, Feb 12
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    Fri, Feb 7 – Wed, Feb 12
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  • 3/4" LF4001E CxF <br>Dielectric Union<br>(Lead Free) Product Image
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    3/4" LF4001E CxF Dielectric Union (Lead Free) 0821461 3/4" LF4001E CxF Dielectric Union (Lead Free)
    SKU: 0821461
    Brand: Watts
    $14.99 each
    Fri, Feb 7 – Wed, Feb 12
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    Fri, Feb 7 – Wed, Feb 12
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  • 1/2" CxF Dielectric Union<br>(Lead Free) Product Image
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    1/2" CxF Dielectric Union (Lead Free) 12-DUXLC 1/2" CxF Dielectric Union (Lead Free)
    SKU: 12-DUXLC
    Brand: Zurn
    $8.11 each
    Mon, Feb 3 – Wed, Feb 5
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    Mon, Feb 3 – Wed, Feb 5
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Resources

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  • 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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