购买 Backflow Preventer Types

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$529.93
$843.99
Zurn Wilkins 1-375XL 1" 375XL Reduced Pressure Principle Backflow Preventer
Amazon.com
117
Free shipping
折扣 37%
$529.93
$843.99
Zurn Wilkins 1-375XL 1" 375XL Reduced Pressure Principle Backflow Preventer
Amazon.com
117
$167.70
$201.99
Zurn Wilkins 1-720A 1" 720A Pressure Vacuum Breaker Assembly
Amazon.com
3 千+
Free shipping
折扣 16%
$167.70
$201.99
Zurn Wilkins 1-720A 1" 720A Pressure Vacuum Breaker Assembly
Amazon.com
3 千+
$139.51
Watts Dual Check W Atmospheric Vent: 9D, 3/4 in Pipe Size, FNPT X FNPT, 18.7 Gpm Flow Rate, Brass Model: 9D-M2-3/4"
Grainger
$139.51
Watts Dual Check W Atmospheric Vent: 9D, 3/4 in Pipe Size, FNPT X FNPT, 18.7 Gpm Flow Rate, Brass Model: 9D-M2-3/4"
Grainger
$594.28
Zurn Wilkins 34-975XL 3/4" 975XL Reduced Pressure Principle Backflow Preventer
Amazon.com
442
Free shipping
$594.28
Zurn Wilkins 34-975XL 3/4" 975XL Reduced Pressure Principle Backflow Preventer
Amazon.com
442
$14,139.99
Zurn Wilkins 8-350ASTOSY 8" Double Check Water Backflow Preventer Flanged End OSY Gate Valves
Core & Main
$14,139.99
Zurn Wilkins 8-350ASTOSY 8" Double Check Water Backflow Preventer Flanged End OSY Gate Valves
Core & Main
$2,459.00
Zurn Wilkins 375XL 2" Reduced Pressure Principle Backflow Preventer, 175 PSI, 2-375XL
Global Industrial
117
$2,459.00
Zurn Wilkins 375XL 2" Reduced Pressure Principle Backflow Preventer, 175 PSI, 2-375XL
Global Industrial
117
$304.69
Watts Backflow Preventer: SD-2, 3/8 in Pipe Size, MNPT X MNPT, 2.5 Gpm Flow Rate, 3 in Overall Lg Model: 3/8 SD2-MN
Grainger
$304.69
Watts Backflow Preventer: SD-2, 3/8 in Pipe Size, MNPT X MNPT, 2.5 Gpm Flow Rate, 3 in Overall Lg Model: 3/8 SD2-MN
Grainger
$86.35
$157.00
Krowne 21-109L Low Lead In-Line Vacuum Breaker, Prevents Back Siphonage/Backflow, Backflow Preventer
KaTom Restaurant Supply, Inc.
1
折扣 45%
$86.35
$157.00
Krowne 21-109L Low Lead In-Line Vacuum Breaker, Prevents Back Siphonage/Backflow, Backflow Preventer
KaTom Restaurant Supply, Inc.
1
$15,032.99
Zurn Wilkins 8-350ASTDACFM 8" Double Check Water Valve Detector Backflow Preventer Assembly CFM Meter
Core & Main
$15,032.99
Zurn Wilkins 8-350ASTDACFM 8" Double Check Water Valve Detector Backflow Preventer Assembly CFM Meter
Core & Main
$590.47
Resideo TK60PV150PNKP TK60 Boiler Trim Kit W/ 1-1/2" IPS Air Eliminator & Double-Check Backflow Preventer, TK60PV150PNKP | Supplyhouse.Com
SupplyHouse.com
$590.47
Resideo TK60PV150PNKP TK60 Boiler Trim Kit W/ 1-1/2" IPS Air Eliminator & Double-Check Backflow Preventer, TK60PV150PNKP | Supplyhouse.Com
SupplyHouse.com
$1,049.00
Zurn Wilkins 975XL 1" Reduced Pressure Principle Backflow Preventer, 175 PSI, 1-975XL
Global Industrial
1
$1,049.00
Zurn Wilkins 975XL 1" Reduced Pressure Principle Backflow Preventer, 175 PSI, 1-975XL
Global Industrial
1
$566.04
Resideo TK60PV150NK TK60 Boiler Trim Kit W/ 1-1/2" FNPT Air Eliminator & Double-Check Backflow Preventer, TK60PV150NK | Supplyhouse.Com
SupplyHouse.com
$566.04
Resideo TK60PV150NK TK60 Boiler Trim Kit W/ 1-1/2" FNPT Air Eliminator & Double-Check Backflow Preventer, TK60PV150NK | Supplyhouse.Com
SupplyHouse.com
$5,916.97
Watts F111604 957-NRS-FS 4" Reduced Pressure Zone Assembly With NRS Shutoff Valves
WebstaurantStore
$5,916.97
Watts F111604 957-NRS-FS 4" Reduced Pressure Zone Assembly With NRS Shutoff Valves
WebstaurantStore
$545.21
Resideo TK60PV150SNK TK60 Boiler Trim Kit W/ 1-1/2" Sweat Air Eliminator & Double-Check Backflow Preventer, TK60PV150SNK | Supplyhouse.Com
SupplyHouse.com
$545.21
Resideo TK60PV150SNK TK60 Boiler Trim Kit W/ 1-1/2" Sweat Air Eliminator & Double-Check Backflow Preventer, TK60PV150SNK | Supplyhouse.Com
SupplyHouse.com
$5.62
$12.95
Universal TC Lead Free Male X Female With Test Cock 1/8 in. X 1/4 in. MIPT X FIPT | TC-1814F
Sprinkler Warehouse
折扣 56%
$5.62
$12.95
Universal TC Lead Free Male X Female With Test Cock 1/8 in. X 1/4 in. MIPT X FIPT | TC-1814F
Sprinkler Warehouse
$383.34
Groen 146392 Backflow Preventer - Watts - Actuators
Parts Town
$383.34
Groen 146392 Backflow Preventer - Watts - Actuators
Parts Town
$148.99
Seko Promax PXS4F04U0000 4-Product Wall-Mount Venturi Chemical Dilution System With One-Hand Activation And Flex Gap Backflow Prevention - 1 GPM
WebstaurantStore
$148.99
Seko Promax PXS4F04U0000 4-Product Wall-Mount Venturi Chemical Dilution System With One-Hand Activation And Flex Gap Backflow Prevention - 1 GPM
WebstaurantStore
$449.95
Zurn Wilkins 350 1" Double Check Backflow Preventer, 175 PSI, 1-350
Global Industrial
73
$449.95
Zurn Wilkins 350 1" Double Check Backflow Preventer, 175 PSI, 1-350
Global Industrial
73
$43.89
$84.60
T&S B-0972 Atmospheric Back Flow Preventer, 3/4" Garden Hose Thread, Chrome
KaTom Restaurant Supply, Inc.
1
折扣 48%
$43.89
$84.60
T&S B-0972 Atmospheric Back Flow Preventer, 3/4" Garden Hose Thread, Chrome
KaTom Restaurant Supply, Inc.
1
$523.89
Bunn 46555.1000 Backflow Assembly With Check Valve - U3 - Valves Solenoids & Fittings
Parts Town
$523.89
Bunn 46555.1000 Backflow Assembly With Check Valve - U3 - Valves Solenoids & Fittings
Parts Town
$69.74
$126.80
T&S B-0970-FE Atmospheric Back Flow Preventer
WebstaurantStore
1
折扣 45%
$69.74
$126.80
T&S B-0970-FE Atmospheric Back Flow Preventer
WebstaurantStore
1
$1,454.40
Zurn® Wilkins 34-375XLB 375XL Composite Vessel Backflow Preventer, 3/4 in Nominal, FNPT End Style, Quarter-Turn Ball Valve, Reinforced Nylon Bo...
Faucet Depot
Free shipping
$1,454.40
Zurn® Wilkins 34-375XLB 375XL Composite Vessel Backflow Preventer, 3/4 in Nominal, FNPT End Style, Quarter-Turn Ball Valve, Reinforced Nylon Bo...
Faucet Depot
Free shipping
$175.66
Watts 1/2-In Bronze Backflow Preventer | B911S-M3
Lowe's
133
$175.66
Watts 1/2-In Bronze Backflow Preventer | B911S-M3
Lowe's
133
$75.76
$161.40
T&S B-0970-FEZ Easyinstall Atmospheric Back Flow Preventer, Chrome Plated, 3/8" IPS
KaTom Restaurant Supply, Inc.
1
折扣 53%
$75.76
$161.40
T&S B-0970-FEZ Easyinstall Atmospheric Back Flow Preventer, Chrome Plated, 3/8" IPS
KaTom Restaurant Supply, Inc.
1
$1,540.80
Zurn® Wilkins 375XL-G 1 Backflow Preventer, 1 in Nominal, FNPT End Style, Quarter-Turn Ball Valve, Bronze Body, Reduced Pressure
Faucet Depot
Free shipping
$1,540.80
Zurn® Wilkins 375XL-G 1 Backflow Preventer, 1 in Nominal, FNPT End Style, Quarter-Turn Ball Valve, Bronze Body, Reduced Pressure
Faucet Depot
Free shipping
$2.50
3/4 in. Schedule 40 PVC Inline Check Valve For Backflow Prevention NSF Socket-Type
247Garden
$2.50
3/4 in. Schedule 40 PVC Inline Check Valve For Backflow Prevention NSF Socket-Type
247Garden
$163.63
DEMA ASSE 1052 Backflow Preventer
Worldwide Janitor
$163.63
DEMA ASSE 1052 Backflow Preventer
Worldwide Janitor
$147.99
Zurn Wilkins 3/4-In Bronze FNPT Pressure Vacuum Breaker | 34-720A
Lowe's
3 千+
$147.99
Zurn Wilkins 3/4-In Bronze FNPT Pressure Vacuum Breaker | 34-720A
Lowe's
3 千+
$47.52
$59.80
Watts 800M4QT 3/4 Inch In. PVB Backflow Preventer
shedfriends
折扣 20%
$47.52
$59.80
Watts 800M4QT 3/4 Inch In. PVB Backflow Preventer
shedfriends
$81.01
$104.35
Zurn Wilkins 1-375 Reduced Pressure Zone Backflow Preventer
shedfriends
折扣 22%
$81.01
$104.35
Zurn Wilkins 1-375 Reduced Pressure Zone Backflow Preventer
shedfriends
$129.86
FEBCO 3/4-In Bronze FNPT Pressure Vacuum Breaker | U765-QT-FZ PVB 3/4
Lowe's
3
$129.86
FEBCO 3/4-In Bronze FNPT Pressure Vacuum Breaker | U765-QT-FZ PVB 3/4
Lowe's
3
$409.99
APOLLO VALVES Reduced Pressure Zone Backflow Preventer, 4ALF204A2F
Zoro.com
1
$409.99
APOLLO VALVES Reduced Pressure Zone Backflow Preventer, 4ALF204A2F
Zoro.com
1
$78.69
$106.23
Zurn Wilkins 3/4" 975XL2 Reduced Pressure Principle Backflow Preventer With Strainer
vyroqi.com
折扣 25%
$78.69
$106.23
Zurn Wilkins 3/4" 975XL2 Reduced Pressure Principle Backflow Preventer With Strainer
vyroqi.com
$850.00
Watts 909-Qt Back Flow Preventer 1-1/4" 909Qtm1
eBay
Free shipping
$850.00
Watts 909-Qt Back Flow Preventer 1-1/4" 909Qtm1
eBay
Free shipping
$4,854.74
Backflow Preventer With Water Meter And Relief Valve
FireHoseDirect
$4,854.74
Backflow Preventer With Water Meter And Relief Valve
FireHoseDirect
$17.99
Wilkins Vacuum Breaker: Male GHT X Male GHT, For Water Media, 180F, Brass, Back-Siphonage, GHT Model: BFP-9
Grainger
$17.99
Wilkins Vacuum Breaker: Male GHT X Male GHT, For Water Media, 180F, Brass, Back-Siphonage, GHT Model: BFP-9
Grainger
Irrigation Backflow Prevention Device Overview
3:39
YouTubeEwing Outdoor Supply
Irrigation Backflow Prevention Device Overview
Backflow prevention devices are an essential component of any irrigation system. Doug Donahue from Ewing Irrigation & Landscape Supply explains their purpose and reviews the common types of back flow devices used in the irrigation industry. Product Info: https://www.ewingoutdoorsupply.com/products/irrigation/backflow-valves Website: https://www ...
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What is a Backflow Preventer and How Does It Work
YouTubePlumbing Parts Pro
已浏览 20.4万 次2019年6月25日
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Tips and Tricks to Pass the ABPA Backflow Practical Exam
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购买 Backflow Preventer Types

广告
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$566.04
Resideo TK60PV150NK TK60 Boiler Trim Kit W/ 1-1/2" FNPT Air Eliminator & Double-Check Backflow Preventer, TK60PV150NK | Supplyhouse.Com
SupplyHouse.com
$566.04
Resideo TK60PV150NK TK60 Boiler Trim Kit W/ 1-1/2" FNPT Air Eliminator & Double-Check Backflow Preventer, TK60PV150NK | Supplyhouse.Com
SupplyHouse.com
$5,916.97
Watts F111604 957-NRS-FS 4" Reduced Pressure Zone Assembly With NRS Shutoff Valves
WebstaurantStore
$5,916.97
Watts F111604 957-NRS-FS 4" Reduced Pressure Zone Assembly With NRS Shutoff Valves
WebstaurantStore
$545.21
Resideo TK60PV150SNK TK60 Boiler Trim Kit W/ 1-1/2" Sweat Air Eliminator & Double-Check Backflow Preventer, TK60PV150SNK | Supplyhouse.Com
SupplyHouse.com
$545.21
Resideo TK60PV150SNK TK60 Boiler Trim Kit W/ 1-1/2" Sweat Air Eliminator & Double-Check Backflow Preventer, TK60PV150SNK | Supplyhouse.Com
SupplyHouse.com
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Universal TC Lead Free Male X Female With Test Cock 1/8 in. X 1/4 in. MIPT X FIPT | TC-1814F
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Universal TC Lead Free Male X Female With Test Cock 1/8 in. X 1/4 in. MIPT X FIPT | TC-1814F
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Groen 146392 Backflow Preventer - Watts - Actuators
Parts Town
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Groen 146392 Backflow Preventer - Watts - Actuators
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Seko Promax PXS4F04U0000 4-Product Wall-Mount Venturi Chemical Dilution System With One-Hand Activation And Flex Gap Backflow Prevention - 1 GPM
WebstaurantStore
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Seko Promax PXS4F04U0000 4-Product Wall-Mount Venturi Chemical Dilution System With One-Hand Activation And Flex Gap Backflow Prevention - 1 GPM
WebstaurantStore
$449.95
Zurn Wilkins 350 1" Double Check Backflow Preventer, 175 PSI, 1-350
Global Industrial
73
$449.95
Zurn Wilkins 350 1" Double Check Backflow Preventer, 175 PSI, 1-350
Global Industrial
$43.89
$84.60
T&S B-0972 Atmospheric Back Flow Preventer, 3/4" Garden Hose Thread, Chrome
KaTom Restaurant Supply, Inc.
1
折扣 48%
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T&S B-0972 Atmospheric Back Flow Preventer, 3/4" Garden Hose Thread, Chrome
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WebstaurantStore
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Zurn® Wilkins 34-375XLB 375XL Composite Vessel Backflow Preventer, 3/4 in Nominal, FNPT End Style, Quarter-Turn Ball Valve, Reinforced Nylon Bo...
Faucet Depot
Free shipping
$1,454.40
Zurn® Wilkins 34-375XLB 375XL Composite Vessel Backflow Preventer, 3/4 in Nominal, FNPT End Style, Quarter-Turn Ball Valve, Reinforced Nylon Bo...
Faucet Depot
$175.66
Watts 1/2-In Bronze Backflow Preventer | B911S-M3
Lowe's
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Lowe's
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KaTom Restaurant Supply, Inc.
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折扣 53%
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T&S B-0970-FEZ Easyinstall Atmospheric Back Flow Preventer, Chrome Plated, 3/8" IPS
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Zurn® Wilkins 375XL-G 1 Backflow Preventer, 1 in Nominal, FNPT End Style, Quarter-Turn Ball Valve, Bronze Body, Reduced Pressure
Faucet Depot
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Zurn® Wilkins 375XL-G 1 Backflow Preventer, 1 in Nominal, FNPT End Style, Quarter-Turn Ball Valve, Bronze Body, Reduced Pressure
Faucet Depot
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3/4 in. Schedule 40 PVC Inline Check Valve For Backflow Prevention NSF Socket-Type
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DEMA ASSE 1052 Backflow Preventer
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Zurn Wilkins 3/4-In Bronze FNPT Pressure Vacuum Breaker | 34-720A
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Zurn Wilkins 3/4-In Bronze FNPT Pressure Vacuum Breaker | 34-720A
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shedfriends
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Watts 800M4QT 3/4 Inch In. PVB Backflow Preventer
shedfriends

购买 Backflow Preventer Types

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$529.93
$843.99
Zurn Wilkins 1-375XL 1" 375XL Reduced Pressure Principle Backflow Preventer
Amazon.com
117
Free shipping
折扣 37%
$529.93
$843.99
Zurn Wilkins 1-375XL 1" 375XL Reduced Pressure Principle Backflow Preventer
Amazon.com
117
$167.70
$201.99
Zurn Wilkins 1-720A 1" 720A Pressure Vacuum Breaker Assembly
Amazon.com
3 千+
Free shipping
折扣 16%
$167.70
$201.99
Zurn Wilkins 1-720A 1" 720A Pressure Vacuum Breaker Assembly
Amazon.com
3 千+
$139.51
Watts Dual Check W Atmospheric Vent: 9D, 3/4 in Pipe Size, FNPT X FNPT, 18.7 Gpm Flow Rate, Brass Model: 9D-M2-3/4"
Grainger
$139.51
Watts Dual Check W Atmospheric Vent: 9D, 3/4 in Pipe Size, FNPT X FNPT, 18.7 Gpm Flow Rate, Brass Model: 9D-M2-3/4"
Grainger
$594.28
Zurn Wilkins 34-975XL 3/4" 975XL Reduced Pressure Principle Backflow Preventer
Amazon.com
442
Free shipping
$594.28
Zurn Wilkins 34-975XL 3/4" 975XL Reduced Pressure Principle Backflow Preventer
Amazon.com
442
$14,139.99
Zurn Wilkins 8-350ASTOSY 8" Double Check Water Backflow Preventer Flanged End OSY Gate Valves
Core & Main
$14,139.99
Zurn Wilkins 8-350ASTOSY 8" Double Check Water Backflow Preventer Flanged End OSY Gate Valves
Core & Main
$2,459.00
Zurn Wilkins 375XL 2" Reduced Pressure Principle Backflow Preventer, 175 PSI, 2-375XL
Global Industrial
117
$2,459.00
Zurn Wilkins 375XL 2" Reduced Pressure Principle Backflow Preventer, 175 PSI, 2-375XL
Global Industrial
117
$304.69
Watts Backflow Preventer: SD-2, 3/8 in Pipe Size, MNPT X MNPT, 2.5 Gpm Flow Rate, 3 in Overall Lg Model: 3/8 SD2-MN
Grainger
$304.69
Watts Backflow Preventer: SD-2, 3/8 in Pipe Size, MNPT X MNPT, 2.5 Gpm Flow Rate, 3 in Overall Lg Model: 3/8 SD2-MN
Grainger
$86.35
$157.00
Krowne 21-109L Low Lead In-Line Vacuum Breaker, Prevents Back Siphonage/Backflow, Backflow Preventer
KaTom Restaurant Supply, Inc.
1
折扣 45%
$86.35
$157.00
Krowne 21-109L Low Lead In-Line Vacuum Breaker, Prevents Back Siphonage/Backflow, Backflow Preventer
KaTom Restaurant Supply, Inc.
1
$15,032.99
Zurn Wilkins 8-350ASTDACFM 8" Double Check Water Valve Detector Backflow Preventer Assembly CFM Meter
Core & Main
$15,032.99
Zurn Wilkins 8-350ASTDACFM 8" Double Check Water Valve Detector Backflow Preventer Assembly CFM Meter
Core & Main
$590.47
Resideo TK60PV150PNKP TK60 Boiler Trim Kit W/ 1-1/2" IPS Air Eliminator & Double-Check Backflow Preventer, TK60PV150PNKP | Supplyhouse.Com
SupplyHouse.com
$590.47
Resideo TK60PV150PNKP TK60 Boiler Trim Kit W/ 1-1/2" IPS Air Eliminator & Double-Check Backflow Preventer, TK60PV150PNKP | Supplyhouse.Com
SupplyHouse.com
$1,049.00
Zurn Wilkins 975XL 1" Reduced Pressure Principle Backflow Preventer, 175 PSI, 1-975XL
Global Industrial
1
$1,049.00
Zurn Wilkins 975XL 1" Reduced Pressure Principle Backflow Preventer, 175 PSI, 1-975XL
Global Industrial
1
$566.04
Resideo TK60PV150NK TK60 Boiler Trim Kit W/ 1-1/2" FNPT Air Eliminator & Double-Check Backflow Preventer, TK60PV150NK | Supplyhouse.Com
SupplyHouse.com
$566.04
Resideo TK60PV150NK TK60 Boiler Trim Kit W/ 1-1/2" FNPT Air Eliminator & Double-Check Backflow Preventer, TK60PV150NK | Supplyhouse.Com
SupplyHouse.com
$5,916.97
Watts F111604 957-NRS-FS 4" Reduced Pressure Zone Assembly With NRS Shutoff Valves
WebstaurantStore
$5,916.97
Watts F111604 957-NRS-FS 4" Reduced Pressure Zone Assembly With NRS Shutoff Valves
WebstaurantStore
$545.21
Resideo TK60PV150SNK TK60 Boiler Trim Kit W/ 1-1/2" Sweat Air Eliminator & Double-Check Backflow Preventer, TK60PV150SNK | Supplyhouse.Com
SupplyHouse.com
$545.21
Resideo TK60PV150SNK TK60 Boiler Trim Kit W/ 1-1/2" Sweat Air Eliminator & Double-Check Backflow Preventer, TK60PV150SNK | Supplyhouse.Com
SupplyHouse.com
$5.62
$12.95
Universal TC Lead Free Male X Female With Test Cock 1/8 in. X 1/4 in. MIPT X FIPT | TC-1814F
Sprinkler Warehouse
折扣 56%
$5.62
$12.95
Universal TC Lead Free Male X Female With Test Cock 1/8 in. X 1/4 in. MIPT X FIPT | TC-1814F
Sprinkler Warehouse
$383.34
Groen 146392 Backflow Preventer - Watts - Actuators
Parts Town
$383.34
Groen 146392 Backflow Preventer - Watts - Actuators
Parts Town
$148.99
Seko Promax PXS4F04U0000 4-Product Wall-Mount Venturi Chemical Dilution System With One-Hand Activation And Flex Gap Backflow Prevention - 1 GPM
WebstaurantStore
$148.99
Seko Promax PXS4F04U0000 4-Product Wall-Mount Venturi Chemical Dilution System With One-Hand Activation And Flex Gap Backflow Prevention - 1 GPM
WebstaurantStore
$449.95
Zurn Wilkins 350 1" Double Check Backflow Preventer, 175 PSI, 1-350
Global Industrial
73
$449.95
Zurn Wilkins 350 1" Double Check Backflow Preventer, 175 PSI, 1-350
Global Industrial
73