Industrial Valves

Reduced Pressure Zone Assemblies

Browse ValveMan’s reduced pressure zone assemblies, designed to protect drinking water from potential contamination. These assemblies maintain safety by keeping pressure steady and preventing backflow under critical conditions. Offered in a range of specifications, our reduced pressure zone assemblies are trusted in municipal, industrial, and commercial applications. If you need help finding the best model for your project, we’re ready to assist.

Shop Reduced Pressure Zone Assemblies

All Reduced Pressure Zone Assemblies

75 products
SKU: LF909M1-QT-S-FS 1 1/4
1-1/4"
1-1/4" Watts LF909M1-QT-S-FS 1 1/4, Lead-Free Copper Silicon Alloy, Reduced Pressure Zone Backflow Preventer Assembly, Quarter Turn Ball Valve Shutoff, Bronze Strainer, Backflow Flood Sensor
$7,281.00$4,654.99
SKU: LF909-NRS-FS 2 1/2
2-1/2"
2-1/2 Watts LF909-NRS-FS 2 1/2, Lead-Free Cast Iron, Reduced Pressure Zone Backflow Preventer Assembly, NRS Gate Valve Shutoff, ArmorTek Coating, Backflow Flood Sensor
$18,421.00$9,874.99
SKU: LF909-NRS-FS 6
6"
6" Watts LF909-NRS-FS 6, Lead-Free Cast Iron, Reduced Pressure Zone Backflow Preventer Assembly, NRS Gate Valve Shutoff, ArmorTek Coating, Backflow Flood Sensor
$38,037.00$20,390.99
SKU: LF909-NRS-FS 4
4"
4" Watts LF909-NRS-FS 4, Lead-Free Cast Iron, Reduced Pressure Zone Backflow Preventer Assembly, NRS Gate Valve Shutoff, ArmorTek Coating, Backflow Flood Sensor
$26,183.00$14,035.99
SKU: LF909-NRS-FS 3
3"
3" Watts LF909-NRS-FS 3, Lead-Free Cast Iron, Reduced Pressure Zone Backflow Preventer Assembly, NRS Gate Valve Shutoff, ArmorTek Coating, Backflow Flood Sensor
$20,948.00$11,229.99
SKU: LF909M1-NRS-FS 8
8"
8" Watts LF909M1-NRS-FS 8, Lead-Free Cast Iron, Reduced Pressure Zone Backflow Preventer Assembly, NRS Gate Valve Shutoff, ArmorTek Coating, Backflow Flood Sensor
$63,608.00$32,631.99
SKU: LF909M1-NRS-FS 10
10"
10" Watts LF909M1-NRS-FS 10, Lead-Free Cast Iron, Reduced Pressure Zone Backflow Preventer Assembly, NRS Gate Valve Shutoff, ArmorTek Coating, Backflow Flood Sensor
$84,244.00$43,217.99
SKU: LF909-OSY-FS 2 1/2
2-1/2"
2-1/2 Watts LF909-OSY-FS 2 1/2, Lead-Free Cast Iron, Reduced Pressure Zone Backflow Preventer Assembly, OSY Gate Valve Shutoff, ArmorTek Coating, Backflow Flood Sensor
$19,644.00$10,530.99
SKU: Watts-LF909-OSY-FS
3" – 10" Available
Watts LF909 Series, Lead-Free Cast Iron, Reduced Pressure Zone Backflow Preventer Assembly, OSY Gate Valve Shutoff, ArmorTek Coating, Backflow Flood Sensor
$19,644.00Starting at $7,279.99
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SKU: LF909-OSY-FS 3
3"
3" Watts LF909-OSY-FS 3, Lead-Free Cast Iron, Reduced Pressure Zone Backflow Preventer Assembly, OSY Gate Valve Shutoff, ArmorTek Coating, Backflow Flood Sensor
$22,348.00$11,980.99
SKU: LF909-OSY-FS 4
4"
4" Watts LF909-OSY-FS 4, Lead-Free Cast Iron, Reduced Pressure Zone Backflow Preventer Assembly, OSY Gate Valve Shutoff, ArmorTek Coating, Backflow Flood Sensor
$27,923.00$14,968.99
SKU: LF909M1-OSY-FS 8
8"
8" Watts LF909M1-OSY-FS 8, Lead-Free Cast Iron, Reduced Pressure Zone Backflow Preventer Assembly, OSY Gate Valve Shutoff, ArmorTek Coating, Backflow Flood Sensor
$67,854.00$34,808.99
SKU: LF909M1-OSY-FS 10
10"
10" Watts LF909M1-OSY-FS 10, Lead-Free Cast Iron, Reduced Pressure Zone Backflow Preventer Assembly, OSY Gate Valve Shutoff, ArmorTek Coating, Backflow Flood Sensor
$89,859.00$46,097.99
SKU: LF909-OSY-FS 6
6"
6" Watts LF909-OSY-FS 6, Lead-Free Cast Iron, Reduced Pressure Zone Backflow Preventer Assembly, OSY Gate Valve Shutoff, ArmorTek Coating, Backflow Flood Sensor
$40,577.00$21,752.99
SKU: Watts-LF009M-QT-FS
1/2" – 2" Available
Watts LF009 Series, Lead-Free Copper Silicon Alloy, Reduced Pressure Zone Backflow Preventer Assembly, with Quarter Turn Ball Valve Shutoff, Tee Handles, Backflow Flood Sensor
$1,089.00Starting at $469.99
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SKU: LF009PC-QT-FS 1/2
1/2"
1/2" Watts LF009PC-QT-FS 1/2, Lead-Free Copper Silicon Alloy, Reduced Pressure Zone Backflow Preventer Assembly, Quarter Turn Ball Valve Shutoff, Internal Polymer Coating, Backflow Flood Sensor
$1,538.00$1,070.99
SKU: LF009M3-QT-FS 3/4
3/4"
3/4" Watts LF009M3-QT-FS 3/4, Lead-Free Copper Silicon Alloy, Reduced Pressure Zone Backflow Preventer Assembly, Quarter Turn Ball Valve Shutoff, Tee Handles, Backflow Flood Sensor
$1,449.00$650.99
SKU: LF009M2-QT-FS 1
1"
1" Watts LF009M2-QT-FS 1, Lead-Free Copper Silicon Alloy, Reduced Pressure Zone Backflow Preventer Assembly, Quarter Turn Ball Valve Shutoff, Tee Handles, Backflow Flood Sensor
$1,712.00$917.99
SKU: LF009M2-QT-FS 1 1/4
1-1/4"
1-1/4" Watts LF009M2-QT-FS 1 1/4, Lead-Free Copper Silicon Alloy, Reduced Pressure Zone Backflow Preventer Assembly, Quarter Turn Ball Valve Shutoff, Tee Handles, Backflow Flood Sensor
$2,683.00$1,438.99
SKU: LF009-QT-FS 1/2
1/2"
1/2" Watts LF009-QT-FS 1/2, Lead-Free Copper Silicon Alloy, Reduced Pressure Zone Backflow Preventer Assembly, Quarter Turn Ball Valve Shutoff, Backflow Flood Sensor
$1,089.00$583.99
SKU: LF009M2-QT-FS 1 1/2
1-1/2"
1-1/2" Watts LF009M2-QT-FS 1 1/2, Lead-Free Copper Silicon Alloy, Reduced Pressure Zone Backflow Preventer Assembly, Quarter Turn Ball Valve Shutoff, Tee Handles, Backflow Flood Sensor
$2,809.00$1,505.99
SKU: Watts-LF009-QT-S-FS
1/2" – 2" Available
Watts LF009 Series, Lead-Free Copper Silicon Alloy, Reduced Pressure Zone Backflow Preventer Assembly, Quarter Turn Ball Valve Shutoff, Tee Handles, Bronze Strainer, Backflow Flood Sensor
$1,243.00Starting at $566.99
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SKU: LF009M2-QT-FS 2
2"
2" Watts LF009M2-QT-FS 2, Lead-Free Copper Silicon Alloy, Reduced Pressure Zone Backflow Preventer Assembly, Quarter Turn Ball Valve Shutoff, Tee Handles, Backflow Flood Sensor
$3,330.00$1,285.99
SKU: LF009-QT-S-FS 1/2
1/2"
1/2" Watts LF009-QT-S-FS 1/2, Lead-Free Copper Silicon Alloy, Reduced Pressure Zone Backflow Preventer Assembly, Quarter Turn Ball Valve Shutoff, Bronze Strainer, Backflow Flood Sensor
$1,243.00$665.99
75+
Products Available
All 50
States Served
Net 30
Terms Available
60 Years
Valve Expertise

Why Buy Reduced Pressure Zone Assemblies From ValveMan?

Authorized Distributor Since 1965
We are an authorized distributor — not a grey market reseller. Every Reduced Pressure Zone Assemblies product ships new, with the documentation your purchasing department needs — and whatever warranty the manufacturer offers is passed through to you in full.
Expedited Options + Net 30 Terms
In a hurry? Call 888-825-8800 — depending on the item we may be able to expedite your order, and we'll tell you what's realistic. Qualified buyers can apply for Net 30 terms — ideal for MRO, OEM, and project purchasing.
Technical Support from Valve Experts
Our team has 60+ years of valve product knowledge. Call 888-825-8800 or start a chat — we'll help you select the right Reduced Pressure Zone Assemblies product for your application, pressure class, and end connection.
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Our B2B team responds within 2 hours on business days. Exton, PA — Trusted Since 1965.
888-825-8800