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Hydronics
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Hydronic Installation Accessories
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Pressure Reducing and Backflow Preventer
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Brands
Caleffi (2)
Honeywell (2)
LEGEND (1)
Taco (1)
WATTS (2)
Nominal Size
1/2 in (4)
Dimensions
8-1/2 in L x 5-1/4 in H (2)
9 in W (1)
Domestic/Import
Import (1)
Domestic (2)
Series
573 (1)
911 (2)
AF-480 (1)
Softgoods Material
Rubber Membrane (1)
Pressure Rating
100 psi (2)
175 psi (1)
7 to 45 psi (1)
Type
Pre-Adjustable (1)
Body Material
Bronze (2)
Brass (2)
Temperature Rating
40 to 160 deg F (1)
212 deg F (2)
150 deg F (1)
End Style
FNPT (1)
NPT (1)
MNPT x FNPT (1)
Union Solder x NPT (1)
Pressure Reducing and Backflow Preventer
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Caleffi
Autofill & Backflow 1/2in Npt F Union
Part #
573002A
Nominal Size
1/2 in
Dimensions
9 in W
Series
573
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Caleffi
Autofill Combo 1/2in SWT w/0-60PSI Gauge
Part #
573019A
MFG #
573019A
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LEGEND
Autofill W/backflow & Gauge
Part #
800-841
Nominal Size
1/2 in
Domestic/Import
Import
Series
AF-480
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Taco
Combo Boiler Feed Vlv & BFP 1/2in Press
Part #
3450-H2
MFG #
3450-H2
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Honeywell
Press Boiler Feed Combination
Part #
NK300S-100UP
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Honeywell
Sweat and threaded Boiler Feed Combo
Part #
NK300S-100
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WATTS
Sweat9d1/2&B1156Backflow&FastFill
Part #
1/2 B911S
Nominal Size
1/2 in
Dimensions
8-1/2 in L x 5-1/4 in H
Domestic/Import
Domestic
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WATTS
ThrdWatt9d&B1156fBackflow&FastFill
Part #
1/2 B911
Nominal Size
1/2 in
Dimensions
8-1/2 in L x 5-1/4 in H
Domestic/Import
Domestic
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Caleffi
Autofill & Backflow 1/2in Npt F Union
Part #
573002A
Nominal Size
1/2 in
Dimensions
9 in W
Series
573
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Compare
Caleffi
Autofill Combo 1/2in SWT w/0-60PSI Gauge
Part #
573019A
MFG #
573019A
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Compare
LEGEND
Autofill W/backflow & Gauge
Part #
800-841
Nominal Size
1/2 in
Domestic/Import
Import
Series
AF-480
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Compare
Taco
Combo Boiler Feed Vlv & BFP 1/2in Press
Part #
3450-H2
MFG #
3450-H2
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Compare
Honeywell
Press Boiler Feed Combination
Part #
NK300S-100UP
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Compare
Honeywell
Sweat and threaded Boiler Feed Combo
Part #
NK300S-100
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Compare
WATTS
Sweat9d1/2&B1156Backflow&FastFill
Part #
1/2 B911S
Nominal Size
1/2 in
Dimensions
8-1/2 in L x 5-1/4 in H
Domestic/Import
Domestic
Login for Price
Compare
WATTS
ThrdWatt9d&B1156fBackflow&FastFill
Part #
1/2 B911
Nominal Size
1/2 in
Dimensions
8-1/2 in L x 5-1/4 in H
Domestic/Import
Domestic
Login for Price
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