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Reduce Pressure Zone (RPZ)

Ames Series 4000B-FP and LF4000B-FP Reduced Pressure Zone (RPZ) Backflow Preventers are designed to prevent polluted water from entering into the potable water supply due to backsiphonage. These reduced pressure zone devices come with threaded or grooved gear operated ball valve shutoffs, and they have a single access cover for easy maintenance. The LF4000B-FP Series is certified Lead Free. Shop Backflow Direct’s collection of high-quality RPZ backflow preventers today.

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  1. Bronze Reduced Pressure Zone Assembly Gear Operated Slow Close Isolation Valves
    Reduced Pressure Zone Backflow Preventer Ames 4000B-FP
  2. Bronze RPZ Assembly Backflow Preventers with Gear Operated Slow Close Isolation Valves
    Reduced Pressure Zone Backflow Preventer (Grooved) Ames 4000B-FP-GV
  3. Backflow Direct - Bronze Backflow - LF4000B-FP
    Reduced Pressure Zone Assembly Ames LF4000B-FP
  4. Backflow Direct - Bronze Backflow - LF4000B-FP-GV
    Lead Free Reduced Pressure Zone Assembly (Grooved) Ames LF4000B-FP-GV