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Atmospheric Vacuum Breakers (AVB)


Atmospheric vacuum breakers (AVB) are the simplest design of backflow preventer. If you have less than six control valves, they are the least expensive. These devices are not designed as a whole-system backflow prevention valve; one must be installed at every control valve. Sprinkler Warehouse does not recommend AVB’s for irrigation systems where there is a potential to contaminate drinking water.

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  1. Aqualine Brass Atmospheric Vacuum Breaker 1" FPT | AVB-100
    Brass Atmospheric Vacuum Breaker 1 in. FPT | AVB-100
    On-Sale $21.68 List Price $44.95
    HLSG SKU: AQLAVB100
    SKU: AVB-100
  2. Aqualine Brass Atmospheric Vacuum Breaker 3/4" FPT | AVB-075
    Brass Atmospheric Vacuum Breaker 3/4 in. FPT | AVB-075
    On-Sale $15.83 List Price $30.95
    HLSG SKU: AQLAVB075
    SKU: AVB-075
  3. Aqualine AVB Float Kit 1" | RK7
    Aqualine AVB Float Kit 1 in. | RK7
    On-Sale $2.75 List Price $4.95
    SKU: RK7
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