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Dielectric Unions & Nipples

  • 1/2" LF3001A CxF Dielectric Union (Lead Free)
    SKU: 0009864
    Brand: Watts
    (13)
    $11.85 each
    $113.50 box of 10
    $11.35 each
    62
    Wed, Jul 10
    62
    QtyArrives
    62 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • 3/4" LF3001A CxF Dielectric Union (Lead Free)
    SKU: 0009865
    Brand: Watts
    (13)
    $11.95 each
    $114.50 box of 10
    $11.45 each
    357
    Wed, Jul 10
    357
    QtyArrives
    357 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • 1" LF3001A CxF Dielectric Union (Lead Free)
    SKU: 0009866
    Brand: Watts
    (13)
    $17.45 each
    $167.50 box of 10
    $16.75 each
    74
    Wed, Jul 10
    74
    QtyArrives
    74 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • $19.75 each
    $189.50 box of 10
    $18.95 each
    23
    Wed, Jul 10
    23
    QtyArrives
    23 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • 1-1/4" LF3001A CxF Dielectric Union (Lead Free)
    SKU: 0009867
    Brand: Watts
    (13)
    $34.25 each
    $328.50 box of 10
    $32.85 each
    77
    Wed, Jul 10
    77
    QtyArrives
    77 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • 1-1/2" LF3001A CxF Dielectric Union (Lead Free)
    SKU: 0009868
    Brand: Watts
    (13)
    $49.45 each
    $469.50 box of 10
    $46.95 each
    55
    Wed, Jul 10
    55
    QtyArrives
    55 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • 2" LF3001A CxF Dielectric Union (Lead Free)
    SKU: 0009869
    Brand: Watts
    (13)
    $73.95 each
    $699.50 box of 10
    $69.95 each
    2
    Wed, Jul 10
    2
    QtyArrives
    2 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • 3/4" 3003 FxF Dielectric Union (Lead Free)
    SKU: 0009875
    Brand: Watts
    (13)
    $20.35 each
    $97.25 box of 5
    $19.45 each
    144
    Wed, Jul 10
    144
    QtyArrives
    144 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • 1" LF3003 FxF Dielectric Union (Lead Free)
    SKU: 0009876
    Brand: Watts
    (13)
    $34.45 each
    $164.75 box of 5
    $32.95 each
    67
    Wed, Jul 10
    67
    QtyArrives
    67 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • $82.95 each
    8
    Wed, Jul 10
    8
    QtyArrives
    8 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • 1/2" LF3003 FxF Dielectric Union, Lead Free
    SKU: 0009874
    Brand: Watts
    (13)
    $17.45 each
    21
    Wed, Jul 10
    21
    QtyArrives
    21 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • 2" LF3003 FxF Dielectric Union (Lead Free)
    SKU: 0009879
    Brand: Watts
    $108.95 each
    2
    Wed, Jul 10
    2
    QtyArrives
    2 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • 1" Dielectric Union Repair Kit
    SKU: 0881433
    Brand: Watts
    $9.45 each
    Tue, Jul 16 – Thu, Jul 18
    Arrives
    Tue, Jul 16 – Thu, Jul 18
    Questions? Call 1-888-757-4774 or
  • $15.35 each
    Tue, Jul 16 – Thu, Jul 18
    Arrives
    Tue, Jul 16 – Thu, Jul 18
    Questions? Call 1-888-757-4774 or
  • $16.15 each
    $154.50 box of 10
    $15.45 each
    67
    Wed, Jul 10
    67
    QtyArrives
    67 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • $22.65 each
    14
    Wed, Jul 10
    14
    QtyArrives
    14 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • $31.75 each
    Tue, Jul 16 – Thu, Jul 18
    Arrives
    Tue, Jul 16 – Thu, Jul 18
    Questions? Call 1-888-757-4774 or
  • $35.75 each
    Tue, Jul 16 – Thu, Jul 18
    Arrives
    Tue, Jul 16 – Thu, Jul 18
    Questions? Call 1-888-757-4774 or
  • $82.95 each
    Thu, Jul 18 – Tue, Jul 23
    Arrives
    Thu, Jul 18 – Tue, Jul 23
    Questions? Call 1-888-757-4774 or
  • $31.95 each
    Thu, Jul 18 – Tue, Jul 23
    Arrives
    Thu, Jul 18 – Tue, Jul 23
    Questions? Call 1-888-757-4774 or
  • $14.95 each
    Thu, Jul 18 – Tue, Jul 23
    Arrives
    Thu, Jul 18 – Tue, Jul 23
    Questions? Call 1-888-757-4774 or
  • $115.95 each
    Thu, Jul 18 – Tue, Jul 23
    Arrives
    Thu, Jul 18 – Tue, Jul 23
    Questions? Call 1-888-757-4774 or
  • 1/2" CxF Dielectric Union (Lead Free)
    SKU: 12-DUXLC
    Brand: Zurn
    $8.55 each
    $82.50 box of 10
    $8.25 each
    Fri, Jul 12 – Tue, Jul 16
    Arrives
    Fri, Jul 12 – Tue, Jul 16
    Questions? Call 1-888-757-4774 or
  • 3/4" CxF Dielectric Union (Lead Free)
    SKU: 34-DUXLC
    Brand: Zurn
    $6.38 each
    $63.80 box of 10
    $6.38 each
    42
    Wed, Jul 10
    42
    QtyArrives
    42 Wed, Jul 10
    Questions? Call 1-888-757-4774

Resources

Videos

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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