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Show In Stock Only (9)

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NPT x NPT (2)
Press x NPT (2)
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Sweat x NPT (2)

Max Pressure (PSI)
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150 (1)
175 (7)

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$60 to $70 (1)
$100 to $200 (6)
$200 to $300 (2)

Caleffi Boiler Fill Valves and Backflows

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Product Image of 1/2" 573 Backflow Preventer and AutoFill Combination (NPT x NPT)
1/2" 573 Backflow Preventer and AutoFill Combination (NPT x NPT)
SKU: 573002A
Caleffi
SKU: 573002A
Brand: Caleffi
(8)
$158.68 each
In Stock
Get 61 by Tue, Jul 21
In Stock
Get 61 by Tue, Jul 21
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Product Image of 1/2" 573 Backflow Preventer and AutoFill Combination w/ Pressure Gauge (NPT x NPT)
1/2" 573 Backflow Preventer and AutoFill Combination w/ Pressure Gauge (NPT x NPT)
SKU: 573012A
Caleffi
SKU: 573012A
Brand: Caleffi
(10)
$189.99 each
In Stock
Get 52 by Tue, Jul 21
In Stock
Get 52 by Tue, Jul 21
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Product Image of 1/2" 573 Backflow Preventer and AutoFill Combination (Sweat x NPT)
1/2" 573 Backflow Preventer and AutoFill Combination (Sweat x NPT)
SKU: 573009A
Caleffi
SKU: 573009A
Brand: Caleffi
(9)
$155.47 each
In Stock
Get 48 by Tue, Jul 21
In Stock
Get 48 by Tue, Jul 21
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Product Image of 1/2" 573 Backflow Preventer and AutoFill Combination w/ Pressure Gauge (Press x Press)
1/2" 573 Backflow Preventer and AutoFill Combination w/ Pressure Gauge (Press x Press)
SKU: 573016A
Caleffi
SKU: 573016A
Brand: Caleffi
(4)
$219.16 each
In Stock
Get 31 by Tue, Jul 21
In Stock
Get 31 by Tue, Jul 21
Compare
Product Image of 1/2" 573 Backflow Preventer and AutoFill Combination w/ Pressure Gauge (Press x NPT)
1/2" 573 Backflow Preventer and AutoFill Combination w/ Pressure Gauge (Press x NPT)
SKU: 573017A
Caleffi
SKU: 573017A
Brand: Caleffi
(2)
$179.21 each
In Stock
Get 31 by Tue, Jul 21
In Stock
Get 31 by Tue, Jul 21
Compare
Product Image of 1/2" 573 Backflow Preventer and AutoFill Combination (Press x Press)
1/2" 573 Backflow Preventer and AutoFill Combination (Press x Press)
SKU: 573006A
Caleffi
SKU: 573006A
Brand: Caleffi
(1)
$213.61 each
In Stock
Get 21 by Tue, Jul 21
In Stock
Get 21 by Tue, Jul 21
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Product Image of Replacement Body with Washers
Replacement Body with Washers
SKU: 573100A
Caleffi
SKU: 573100A
Brand: Caleffi
(9)
$61.66 each
In Stock
Get 9 by Tue, Jul 21
In Stock
Get 9 by Tue, Jul 21
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Product Image of 1/2" 573 Backflow Preventer & AutoFill Combination w/ Pressure Gauge (Sweat x NPT)
1/2" 573 Backflow Preventer & AutoFill Combination w/ Pressure Gauge (Sweat x NPT)
SKU: 573019A
Caleffi
SKU: 573019A
Brand: Caleffi
(6)
$199.01 each
In Stock
Get 17 by Tue, Jul 21
In Stock
Get 17 by Tue, Jul 21
Compare
Product Image of 1/2" 573 Backflow Preventer and AutoFill Combination (Press x NPT)
1/2" 573 Backflow Preventer and AutoFill Combination (Press x NPT)
SKU: 573007A
Caleffi
SKU: 573007A
Brand: Caleffi
(2)
$187.69 each
In Stock
Get 7 by Tue, Jul 21
In Stock
Get 7 by Tue, Jul 21
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