Backflow Preventers
401 Results
(Showing 1 - 36)
Mfr # 1 LF009M2-QT
$558.03
Mfr # 4ALF105A2F
$203.11
Mfr # 2 LF909M1-QT
$2,198.97
Mfr # 3/4 LF909-QT
$1,059.83
Mfr # 1/2 LF 009QT
$504.01
Mfr # 4ALF205A2F
$347.96
Mfr # 4ALF204A2F
$338.20
Mfr # 105895BG
$28.68
Mfr # B59001LF
$34.56
Mfr # 38-740F
$146.66
Mfr # AS-4201-BLS
$23.35
Mfr # 2 LF 009QT
$1,207.25
Mfr # 1 LF909-QT
$1,234.24
Mfr # 4ALF104A2F
$195.75
Mfr # 1 LF009M2-QT-S
$551.49
Mfr # 2-975XL
$1,057.73
Mfr # 3/4 LF009M3-QT
$580.22
Mfr # 1-375XL
$620.59
Mfr # 009M2QTS-3/4
$361.03
Mfr # 1-975XL
$514.48
$219.75
Mfr # 2 1/2 DLF909-OSY
$2,569.31
Mfr # 1 1/2 LF909M1-QT
$2,069.88
Mfr # 34-975XL
$484.77
$3,490.09
Mfr # 2 LF007M1-QT-S
$797.85
Mfr # 3/4 LF 009QT
$500.58
Mfr # 009-M1-QTS
$413.91
$680.00
$25.52
Mfr # 1 LF 009M2QT1
$551.38
Mfr # 50HA-BR
$33.40
Mfr # BV-1002
$66.52
Mfr # 53300
$84.34
Mfr # 3/4 LF007M3-QT-S
$311.50
Mfr # 1-975XL2
$719.14
About Backflow Preventers
A backflow preventer is a device that stops water from flowing back into the water supply line. It ensures that sprinklers, boilers, dishwashers, sewers and toilets are a one-way system, with water flowing out and not back in. Backflow valves, vacuum breakers and double check valves are used to prevent water supplies from being contaminated.