We found the following: Backflow Connection
Backflow Preventer & (PRV) Boiler Fill Valve #911S
Boiler Water Supply Valve - the Watts 911S "Dual Valve" gets it's nickname because it is a combination back-flow preventor and (PRV) pressure reducing valve. Watts 911S provides safe make-up water, preventing a backflow condition. Designed for use with a residencial size hydronic (water) heating boiler, water pressure is reduced to 15 psi, and is adjustable within a range of 10-25 psi. Watts 911S also prevents a harmful backflow condition. Watts 911S is a 1/2 Inch copper Sweat X 1/2" FIP connection.
| Model | List Price | Your Price | Quantity |
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1/2" SKU: B911S-M3 |
$103.50 | $82.80 |
C-155 Anti-Siphon Angle Sill Faucets
Prier Anti-Siphon Angle Sill Faucets are designed for areas that require water service with an anti-siphon backflow check valve connection, but are not subject to freezing temperatures.
| Model | List Price | Your Price | Quantity |
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1/2" FPT Polished Chrome SKU: C-155CP50 |
$48.96 | $34.27 | |
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1/2" FPT Satin Nickel SKU: C-155NP50 |
$33.48 | $23.44 | |
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3/4" FPT Polished Chrome SKU: C-155CP75 |
$48.96 | $34.27 | |
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3/4" FPT Satin Nickel SKU: C-155NP75 |
$33.48 | $23.44 | |
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3/4" SWT Satin Nickel SKU: C-155NPSW |
$34.55 | $24.19 | |
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Satin Nickel Box SKU: C-155BX1 |
$294.78 | $206.35 | |
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Brass Box SKU: C-155BX2 |
$286.87 | $200.81 |
C-157 Anti-Siphon Angle Sill Faucets
Prier Anti-Siphon Angle Sill Faucets are designed for areas that require water service with an anti-siphon backflow check valve connection, but are not subject to freezing temperatures.
| Model | List Price | Your Price | Quantity |
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1/2" and 3/4" SWT Satin Nickel SKU: C-157NP50 |
$34.55 | $24.19 |
C-158 Anti-Siphon Angle Sill Faucets
Prier Anti-Siphon Angle Sill Faucets are designed for areas that require water service with an anti-siphon backflow check valve connection, but are not subject to freezing temperatures.
| Model | List Price | Your Price | Quantity |
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1/2" MPT Satin Nickel SKU: C-158NP50 |
$34.55 | $24.19 | |
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1/2" MPT Satin Nickel SKU: C-158ST50 |
$37.43 | $26.20 | |
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3/4" MPT Satin Nickel SKU: C-158NP75 |
$34.55 | $24.19 | |
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3/4" MPT Satin Nickel SKU: C-158ST75 |
$37.43 | $26.20 |
C-255 Anti-Siphon Angle Sill Faucets
Prier Anti-Siphon Angle Sill Faucets are designed for areas that require water service with an anti-siphon backflow check valve connection, but are not subject to freezing temperatures.
| Model | List Price | Your Price | Quantity |
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1/2" FPT Polished Chrome SKU: C-255CP50 |
$48.30 | $33.81 | |
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1/2" FPT Satin Nickel SKU: C-255NP50 |
$35.87 | $25.11 | |
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3/4" FPT Polished Chrome SKU: C-255CP75 |
$48.30 | $33.81 | |
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3/4" FPT Satin Nickel SKU: C-255NP75 |
$35.87 | $25.11 |
C-257 Anti-Siphon Angle Sill Faucets
Prier Anti-Siphon Angle Sill Faucets are designed for areas that require water service with an anti-siphon backflow check valve connection, but are not subject to freezing temperatures.Finish - Satin Nickel.
| Model | List Price | Your Price | Quantity |
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1/2" and 3/4" SWT Satin Nickel SKU: C-257NP50 |
$36.92 | $25.84 |
C-258 Anti-Siphon Angle Sill Faucets
Prier Anti-Siphon Angle Sill Faucets are designed for areas that require water service with an anti-siphon backflow check valve connection, but are not subject to freezing temperatures. Finish - Satin Nickel.
| Model | List Price | Your Price | Quantity |
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1/2" MPT Satin NIckel SKU: C-258NP50 |
$48.49 | $39.99 | |
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3/4" MPT Satin Nickel SKU: C-258NP75 |
$48.79 | $39.99 |
C-355 Anti-Siphon Angle Sill Faucets
Prier Anti-Siphon Angle Sill Faucets are designed for areas that require water service with an anti-siphon backflow check valve connection, but are not subject to freezing temperatures.
| Model | List Price | Your Price | Quantity |
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1/2" FPT Polished Chrome SKU: C-355CP50 |
$50.63 | $35.44 | |
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1/2" FPT Satin Nickel SKU: C-355NP50 |
$34.68 | $24.28 | |
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3/4" FPT Polished Chrome SKU: C-355CP75 |
$50.63 | $35.44 | |
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3/4" FPT Satin Nickel SKU: C-355NP75 |
$34.68 | $24.28 |
C-357 Anti-Siphon Angle Sill Faucets
Prier Anti-Siphon Angle Sill Faucets are designed for areas that require water service with an anti-siphon backflow check valve connection, but are not subject to freezing temperatures. Finish - Satin Nickel.
| Model | List Price | Your Price | Quantity |
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1/2" and 3/4" Satin Nickel SKU: C-357NP50 |
$36.50 | $25.55 |
Febco 765 PVB Pressure Vacuum Breaker
Febco 765 PVB. Pressure Vacuum Breaker provides protection against water back-siphonage and contamination. Used for irrigation systems and commercial applications. FEBCO’s Series 765 Pressure Vacuum Breaker with heavy-duty durable brass construction and "freeze plug" design.
| Model | List Price | Your Price | Quantity |
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1" PVB SKU: 765 IN STOCK!
WILL SHIP SAME DAY! Quantity Breaks Available:
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$218.25 | $74.35 | |
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3/4" PVB SKU: 765-34 UPC: 765-34 Quantity Breaks Available:
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$194.00 | $72.98 |





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