Watts 800M4FR Freeze Resistant Vacuum Breakers

Watts 800M4FR Freeze Resistant Pressure Vacuum Breakers prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage. It consists of bronze body construction, silicone rubber check valve disc, plastic check valve seat, stainless steel springs, a bonnet with silicone rubber O-ring seal, a lightweight plastic disc float, a built-in relief valve to protect the internal components and the body from freezing, tee handle or lever handle shutoffs, and test cocks for winterization draining. Series 800M4FR is ideal in continuous pressure health hazard applications where exposure to sudden freezing conditions such as on irrigation systems and industrial process water systems can occur. Maximum Pressure: 150psi (10.3 bar), Minimum Pressure: 15psi (55kPa).

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  • 1/2" 800M4FR Freeze Resistant Anti-Siphon Vacuum Breaker View Specs
    • SKU: 0388013
    • Brand: Watts

    $112.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 1/2" LF800M4FR Freeze Resistant Anti-Siphon Vacuum Breaker, Lead Free View Specs

    $123.95 / each

    In Stock! (1 Available) Ships in 24-48 Hrs
  • 3/4" LF800M4FR Freeze Resistant Anti-Siphon Vacuum Breaker View Specs

    $99.45 / each

    In Stock! (1 Available) Ships in 24-48 Hrs
  • 3/4" 800M4FR Freeze Resistant Anti-Siphon Vacuum Breaker View Specs
    • SKU: 0388014
    • Brand: Watts

    $77.65 / each

    In Stock! (3 Available) Ships in 24-48 Hrs
  • 1" 800M4FR Freeze Resistant Anti-Siphon Vacuum Breaker View Specs
    • SKU: 0388015
    • Brand: Watts

    $84.25 / each

    $243.75 / box
    3 x $81.25

    In Stock! (3 Available) Ships in 24-48 Hrs
  • 1" LF800M4FR Freeze Resistant Anti-Siphon Vacuum Breaker, Lead Free View Specs

    $109.35 / each

    Out of Stock Allow 7-10 Days to Ship Out
  • 1 1/4" 800M4FR Freeze Resistant Anti-Siphon Vacuum Breaker View Specs
    • SKU: 0388016
    • Brand: Watts

    $275.55 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 1 1/4" Lead Free 800M4FR Freeze Resistant Anti-Siphon Vacuum Breaker View Specs

    $327.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 1 1/2" 800M4FR Freeze Resistant Anti-Siphon Vacuum Breaker View Specs
    • SKU: 0388017
    • Brand: Watts

    $317.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 1 1/2" Lead Free 800M4FR Freeze Resistant Anti-Siphon Vacuum Breaker View Specs

    $353.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 2" Lead Free 800M4FR Freeze Resistant Anti-Siphon Vacuum Breaker View Specs

    $395.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 2" 800M4FR Freeze Resistant Anti-Siphon Vacuum Breaker View Specs
    • SKU: 0388018
    • Brand: Watts

    $337.95 / each

    In Stock! (1 Available) Ships in 24-48 Hrs
  • RK 800M4 B, Repair Bonnet Kit for 800M4FR Vacuum Breaker (1-1/4", 1-1/2", 2") View Specs

    $53.45 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • RK 800M4 CK, Repair Check Kit for 800M4FR Vacuum Breaker (1-1/4", 1-1/2", 2") View Specs

    $28.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • Bonnet Assembly Kit for 1" 800M4 Vacuum Breaker View Specs

    $23.95 / each

    In Stock! (3 Available) Ships in 24-48 Hrs