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Dielectric Unions & Nipples

Dielectric Unions & Nipples

  • 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
      Box Up & Save 4%  
    $258.96 box of 24
    $10.79 each
    88
    Tue, Dec 8
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    88 Tue, Dec 8
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  • 1-1/4" Sweat x Female Dielectric Union<br>(Lead Free) Product Image
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    1-1/4" Sweat x Female Dielectric Union (Lead Free) DEU125CF 1-1/4" Sweat x Female Dielectric Union (Lead Free)
    SKU: DEU125CF
    Brand: Bluefin
    (2)
    $7.79 each
      Box Up & Save 6%  
    $72.90 box of 10
    $7.29 each
    130
    Tue, Dec 8
    130
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    130 Tue, Dec 8
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  • 1-1/2" Sweat x Female Dielectric Union (Lead Free) Product Image
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    1-1/2" Sweat x Female Dielectric Union (Lead Free) DEU150CF 1-1/2" Sweat x Female Dielectric Union (Lead Free)
    SKU: DEU150CF
    Brand: Bluefin
    $11.69 each
      Box Up & Save 6%  
    $109.90 box of 10
    $10.99 each
    370
    Tue, Dec 8
    370
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    370 Tue, Dec 8
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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
      Box Up & Save 5%  
    $200.28 box of 12
    $16.69 each
    40
    Tue, Dec 8
    40
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    40 Tue, Dec 8
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  • 3/4" Male x Sweat Dielectric Union<br>(Lead Free) Product Image
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    3/4" Male x Sweat Dielectric Union (Lead Free) DEU075CM 3/4" Male x Sweat Dielectric Union (Lead Free)
    SKU: DEU075CM
    Brand: Bluefin
    (1)
    $5.19 each
      Box Up & Save 6%  
    $122.25 box of 25
    $4.89 each
    535
    Tue, Dec 8
    535
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    535 Tue, Dec 8
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  • 2" Sweat x Female Dielectric Union<br>(Lead Free) Product Image
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    2" Sweat x Female Dielectric Union (Lead Free) DEU200CF 2" Sweat x Female Dielectric Union (Lead Free)
    SKU: DEU200CF
    Brand: Bluefin
    (1)
    $19.95 each
      Box Up & Save 6%  
    $187.90 box of 10
    $18.79 each
    200
    Tue, Dec 8
    200
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    200 Tue, Dec 8
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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)
    $20.40 each
    86
    Tue, Dec 8
    86
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    86 Tue, Dec 8
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  • 1" x 4" Galvanized Steel Dielectric Nipple<br>w/ Pex Insulator Product Image
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    1" x 4" Galvanized Steel Dielectric Nipple w/ Pex Insulator DEN100-400 1" x 4" Galvanized Steel Dielectric Nipple w/ Pex Insulator
    SKU: DEN100-400
    Brand: Bluefin
    (1)
    $3.44 each
      Box Up & Save 9%  
    $78.25 box of 25
    $3.13 each
    605
    Tue, Dec 8
    605
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    605 Tue, Dec 8
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  • 1-1/2" x 4" Galvanized Steel Dielectric Nipple<br>w/ Pex Insulator Product Image
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    1-1/2" x 4" Galvanized Steel Dielectric Nipple w/ Pex Insulator DEN150-400 1-1/2" x 4" Galvanized Steel Dielectric Nipple w/ Pex Insulator
    SKU: DEN150-400
    Brand: Bluefin
    (1)
    $5.31 each
      Box Up & Save 8%  
    $122.25 box of 25
    $4.89 each
    406
    Tue, Dec 8
    406
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    406 Tue, Dec 8
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  • 3/4" x 3" Galvanized Steel Dielectric Nipple<br>w/ Pex Insulator Product Image
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    3/4" x 3" Galvanized Steel Dielectric Nipple w/ Pex Insulator DEN075-300 3/4" x 3" Galvanized Steel Dielectric Nipple w/ Pex Insulator
    SKU: DEN075-300
    Brand: Bluefin
    (1)
    $2.71 each
      Box Up & Save 13%  
    $59.25 box of 25
    $2.37 each
    257
    Tue, Dec 8
    257
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    257 Tue, Dec 8
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  • 3/4" x 2-1/2" Galvanized Steel Dielectric Nipple<br>w/ Pex Insulator Product Image
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    3/4" x 2-1/2" Galvanized Steel Dielectric Nipple w/ Pex Insulator DEN075-250 3/4" x 2-1/2" Galvanized Steel Dielectric Nipple w/ Pex Insulator
    SKU: DEN075-250
    Brand: Bluefin
    (1)
    $1.97 each
      Box Up & Save 13%  
    $43.00 box of 25
    $1.72 each
    1,618
    Tue, Dec 8
    1,618
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    1,618 Tue, Dec 8
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  • 2" x 4" Galvanized Steel Dielectric Nipple<br>w/ Pex Insulator Product Image
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    2" x 4" Galvanized Steel Dielectric Nipple w/ Pex Insulator DEN200-400 2" x 4" Galvanized Steel Dielectric Nipple w/ Pex Insulator
    SKU: DEN200-400
    Brand: Bluefin
    $7.34 each
      Box Up & Save 8%  
    $134.40 box of 20
    $6.72 each
    550
    Tue, Dec 8
    550
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    550 Tue, Dec 8
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  • 3/4" x 4" Galvanized Steel Dielectric Nipple<br>w/ Pex Insulator Product Image
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    3/4" x 4" Galvanized Steel Dielectric Nipple w/ Pex Insulator DEN075-400 3/4" x 4" Galvanized Steel Dielectric Nipple w/ Pex Insulator
    SKU: DEN075-400
    Brand: Bluefin
    (1)
    $2.63 each
      Box Up & Save 13%  
    $57.50 box of 25
    $2.30 each
    525
    Tue, Dec 8
    525
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    525 Tue, Dec 8
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  • 3/4" FNPT x Copper Press Dielectric Union, P-571NL (Lead Free) Product Image
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    3/4" FNPT x Copper Press Dielectric Union, P-571NL (Lead Free) 301-104PNL 3/4" FNPT x Copper Press Dielectric Union, P-571NL (Lead Free)
    SKU: 301-104PNL
    Brand: Legend Valve
    $13.99 each
    135
    Tue, Dec 8
    135
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    135 Tue, Dec 8
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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
    $16.79 each
      Box Up & Save 5%  
    $190.56 box of 12
    $15.88 each
    62
    Tue, Dec 8
    62
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    62 Tue, Dec 8
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  • 1-1/4" GB-D EPDM Hi Temp Dielectric Gasket (Set of 2) Product Image
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    1-1/4" GB-D EPDM Hi Temp Dielectric Gasket (Set of 2) 0881428 1-1/4" GB-D EPDM Hi Temp Dielectric Gasket (Set of 2)
    SKU: 0881428
    Brand: Watts
    $11.49 each
      Box Up & Save 4%  
    $274.75 box of 25
    $10.99 each
    Mon, Dec 14 – Wed, Dec 16
    Arrives
    Mon, Dec 14 – Wed, Dec 16
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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
    24
    Tue, Dec 8
    24
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    24 Tue, Dec 8
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  • 1" GB-C EPDM Hi-Temp Dielectric Gasket Kit Product Image
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    1" GB-C EPDM Hi-Temp Dielectric Gasket Kit 0881427 1" GB-C EPDM Hi-Temp Dielectric Gasket Kit
    SKU: 0881427
    Brand: Watts
    $7.99 each
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    $189.75 box of 25
    $7.59 each
    49
    Tue, Dec 8
    49
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    49 Tue, Dec 8
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  • 3/4" FIP x 1/2" Sweat Dielectric Union<br>(Lead Free) Product Image
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    3/4" FIP x 1/2" Sweat Dielectric Union (Lead Free) DEU050C-075F 3/4" FIP x 1/2" Sweat Dielectric Union (Lead Free)
    SKU: DEU050C-075F
    Brand: Bluefin
    $3.75 each
      Box Up & Save 6%  
    $88.25 box of 25
    $3.53 each
    1
    Tue, Dec 8
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    1 Tue, Dec 8
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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
    50
    Tue, Dec 8
    50
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    50 Tue, Dec 8
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  • 1/2", 3/4" GA-B Buna Dielectric Gasket Kit (2 Gaskets Per Kit) Product Image
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    1/2", 3/4" GA-B Buna Dielectric Gasket Kit (2 Gaskets Per Kit) 0881401 1/2", 3/4" GA-B Buna Dielectric Gasket Kit (2 Gaskets Per Kit)
    SKU: 0881401
    Brand: Watts
    $2.49 each
      Box Up & Save 4%  
    $59.75 box of 25
    $2.39 each
    70
    Tue, Dec 8
    70
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    70 Tue, Dec 8
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  • 3/4" CxF Dielectric Union<br>(Lead Free) Product Image
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    3/4" CxF Dielectric Union (Lead Free) 34-DUXLC 3/4" CxF Dielectric Union (Lead Free)
    SKU: 34-DUXLC
    Brand: Zurn
    $7.02 each
    21
    Tue, Dec 8
    21
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    21 Tue, Dec 8
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  • 1" CxF Dielectric Union<br>(Lead Free) Product Image
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    1" CxF Dielectric Union (Lead Free) 1-DUXLC 1" CxF Dielectric Union (Lead Free)
    SKU: 1-DUXLC
    Brand: Zurn
    (1)
    $11.02 each
    Fri, Dec 18 – Wed, Dec 23
    Arrives
    Fri, Dec 18 – Wed, Dec 23
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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)
    $32.77 each
    31
    Tue, Dec 8
    31
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    31 Tue, Dec 8
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FAQs, Manuals & Videos

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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.

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