Pros, Join Our TradeMaster Program!
  • 3/4" NPT Female Dual Check Backflow Preventer w/ Atmospheric Vent Product Image
    Add to List
    Add to List
    3/4" NPT Female Dual Check Backflow Preventer w/ Atmospheric Vent 573503A 3/4" NPT Female Dual Check Backflow Preventer w/ Atmospheric Vent
    SKU: 573503A
    Brand: Caleffi
    (1)
    $47.52 each
    42
    Thu, Apr 29
    44
    QtyArrives
    42 Thu, Apr 29
    2 Mon, May 3 – Tue, May 4
    Questions? Call 1-888-757-4774
    Add to List
  • 1/2" NPT Dual Check Backflow Preventer w/ Atmospheric Vent Product Image
    Add to List
    Add to List
    1/2" NPT Dual Check Backflow Preventer w/ Atmospheric Vent 573403A 1/2" NPT Dual Check Backflow Preventer w/ Atmospheric Vent
    SKU: 573403A
    Brand: Caleffi
    (3)
    $48.77 each
    91
    Thu, Apr 29
    91
    QtyArrives
    91 Thu, Apr 29
    Questions? Call 1-888-757-4774
    Add to List
  • 1/2" Sweat Dual Check Backflow Preventer w/ Atmospheric Vent Product Image
    Add to List
    Add to List
    1/2" Sweat Dual Check Backflow Preventer w/ Atmospheric Vent 573409A 1/2" Sweat Dual Check Backflow Preventer w/ Atmospheric Vent
    SKU: 573409A
    Brand: Caleffi
    (1)
    $43.15 each
    37
    Thu, Apr 29
    37
    QtyArrives
    37 Thu, Apr 29
    Questions? Call 1-888-757-4774
    Add to List
  • 1/2" Swt x NPT Dual Check Backflow Preventer, Atmos. Vent Product Image
    Add to List
    Add to List
    1/2" Swt x NPT Dual Check Backflow Preventer, Atmos. Vent 573493A 1/2" Swt x NPT Dual Check Backflow Preventer, Atmos. Vent
    SKU: 573493A
    Brand: Caleffi
    (2)
    $72.58 each
    3
    Thu, Apr 29
    3
    QtyArrives
    3 Thu, Apr 29
    Questions? Call 1-888-757-4774
    Add to List
  • 1/4" NPT Replacement Gauge, 60 psi/0-4 bar Product Image
    Add to List
    Add to List
    1/4" NPT Replacement Gauge, 60 psi/0-4 bar NA10363 1/4" NPT Replacement Gauge, 60 psi/0-4 bar
    SKU: NA10363
    Brand: Caleffi
    $10.23 each
    19
    Thu, Apr 29
    19
    QtyArrives
    19 Thu, Apr 29
    Questions? Call 1-888-757-4774
    Add to List
  • AutoFill Clear Plastic Disc Cover Product Image
    Add to List
    Add to List
    AutoFill Clear Plastic Disc Cover NA10197 AutoFill Clear Plastic Disc Cover
    SKU: NA10197
    Brand: Caleffi
    $0.85 each
    Thu, May 13 – Thu, May 20
    Arrives
    Thu, May 13 – Thu, May 20
    Questions? Call 1-888-757-4774 or LiveChat Img Chat Us
    Add to List
FAQs, Manuals & Videos

Resources

Articles

  • This category contains Caleffi dual checks that can be used for backflow prevention. Caleffi dual checks are available in sizes 1/2" and 3/4" threaded and union connections.

NEED HELP?

888-757-4774
Closed Now: Phone Hours
Monday – Thursday
8am–7:45pm ET
Friday
9am–7:45pm ET
  • Product Image

  • Product Image

    Select 2 to 3 items to compare

  • Product Image

    Compare up to 1 more item

Why don't we show the price of this item?

We try to always offer you the lowest prices possible, but some manufacturers require that we only show these low prices once you take further action.

To see the price, simply add the item to your cart or sign in.